Passengers (2016) is a shit film with an excellent premise but I never think about it, in fact it reminds me of its opposite, a superb film with a ridiculous premise called Sunshine (2007)
If I remember, it was about this asteroid called "The Biosphere" that got hollowed out and sent on relativistic speeds through deep space to seed other solar systems with human colonies. The inside of it was set up like a giant rural town with massive skies, and a foot print the size of New York. And that's a cool ass premise.
But the book was so fucking milquetoast and bland. I could not tell you anything about the protagonist, their challenges, or anything.
It’s entertaining as all hell. It doesn’t pretend to be anything more, so I don’t understand the hate it gets. Just turn off your brain, and have some fun. It’s not supposed to be hard sci-fi.
Mortal Kombat (2021) opened with a great "feudal China with elemental magic" clan story that could have been an amazing movie, but then they jumped forward in time and everything after that was a let down.
Cats is not a complicated musical. All they had to do was animate it and get actual voice actors/singers. I've seen sketches for what I think was a Tim Burton sketch, and that would have been a million times better. I don't know who looked at Cat's and was like, "Yup, we need CGI." It looks horrendous and sounds bad more often than not. The musical is already pretty out there, how much more fun would that movie had been if we had animators working on it. The creative visuals, colors, motifs. Not to mention a cat is a wonderfully complex animal to animate just because of how they move. That movie could have been a visual delight in part with the Spiderman movies if they let it, but noooooo. Let's make a nightmare.
I agree with all the other people in this thread mentioning 'In Time'. It had such a great premise, and I didn't even hate the execution, but it was mediocre. It was like they went 50% of the way to a flawless execution and just said "fuck it, that's good enough". The concept has a lot of elements to explore, like classism, labor exploitation, human rights, even free will to a point... A movie just isn't the right vehicle for that story. It needs to be a series. Done right, you could explore all that while having an overarching plotline, and still have your weekly subplots and B stories. That would give the story time to fully develop the romantic connection between the poor guy who comes into a bunch of time, and the rich girl who empathizes with him. That romance felt incredibly rushed in the movie, but you could build it up over a whole season in a show.
I also want to mention another movie that I'm not sure belongs here. It's not a bad movie, nor do I think the execution was mediocre, but for the life of me I can't figure out why it didn't do better. That movie is called 'Push', with Chris Evans and Dakota Fanning. I just watched it again the other night, and I freaking love it. The concept isn't that amazing or original, but the way they present it is great. There isn't a ton of exposition or world-building. They kinda just drop you in and let you figure it out, and I really like that. Evans and Fanning have great onscreen chemistry, and Djimon Honsou is a perfect bad guy. This is another one where I think it would make a great series, even though I think the movie was done really well. It's just kind of a perfect mid-budget sci-fi action movie, and we don't seem to get those anymore.
The original Purge. I thought all the background stuff and setting were super interesting, but the film itself was a generic home invasion movie. The sequel expanded on all the stuff I was interested in, though.
Madam Web. The premise of your perception being un-stuck in time and the ramifications that has for your psyche is really cool. What's not cool is hiring bad writers and nepo baby actresses to portray that story
The Cube.
Most people saw it as an average horror movie where a bunch of people try to get out of a giant torture box. But there was a pivotal scene that stuck with me where one of the prisoners realizes he helped build part of it. The whole thing wasn't some intentional torture device but just a bunch of people doing their day jobs that were lost in a bureaucracy not ever questioning what their work was creating.
A stark reflection of society and the systems we create and the dangers of not ever looking at the bigger picture.
Of course they proceeded to shit all over this idea in Cube2 where it ended up being just another evil government experiment.
Dark City (1998) could definitely fit the bill, it has so many unique ideas for that time in film and you can see there’s of all sorts of future sci-fi movies in it from the matrix to inception, it’s a very visually ugly movie and the acting is subpar but as a premise it’s super interesting. Generally I think remakes are a waste of time and money but I’d love to see this movie with a proper budget and modern technology
Man in the High Castle tv show. The premise was interesting, Nazis taking over the US and the population figting back. However, the show quickly devolved into a confusing mess.
Nazis are in charge of the US government, yet there's other Nazis on the run from the Nazis in charge? And they're hiding bibles? I was left scratching my head wondering if there were any characters that weren't Nazis. I guess it's a story about how bad guys always turn on each other?
Also The Witcher season 1 tv show. I've never played the games before and knew nothing about it. I was hoping the tv series would be my introduction to the games, but... what in the actual fuck. Was the director drunk? Is this a show about medieval fantasy time travel and I'm just not getting it?
There was this movie I saw once called Time Trap. I definitely would not call it good, but the premise was interesting.
Archaeology professor goes missing while exploring a cave which was once thought to be the location of the fountain of youth. His grad students go looking for him, find the cave, weird things start happening when they enter.
Spoilers below:
The cave is revealed to cause some sort of time distortion which grows in intensity the further in you go. The professor who had been missing for days was only in the cave for a few hours. By the time everyone realizes what is happening, months go by, then years. They exit the cave at one point only to find an apocalypse has occurred, with the cave becoming the only safe haven for them to exist in at this point. Without spoiling the rest of the movie, the story plays in to the fountain of youth legend by including a group of Spanish Conquistadors and a tribe of paleolithic cavemen living in a deeper part of the cave, all living as if only days have passed, but in reality centuries/millennia had gone by outside.
The movie In Time (2011). The premise was interesting but I can't even remember the plot because it was so meh.
I also think Idiocracy could have been better. It had good moments, and that's what most people remember, but the overall cohesiveness falls flat. Great moments, iconic scenes, but could have been a better film.
Not a film, but a TV series?
It's called Jericho, and the synopsis in the Wikipedia reads:
Jericho is an American post-apocalyptic action drama television series, which centers on the residents of the fictional city of Jericho, Kansas, in the aftermath of a nuclear attack on 23 major cities in the contiguous United States.
But yeah, the execution is mediocre at best. Both the action and the drama are unbearably flimsy and cliche, even the argument flops as metal.
New Rose Hotel (1998) It's set in the same universe as Johnny Mnemonic, stars Christopher Walken, Willem Dafoe, and Asia Argento. I love Gibson stories and the short story it's based on, while not one of his best, could make a good creepy weird movie especially with that cast. Unfortunately it is one of the most boring movies I've sat through at least half a dozen times.
Hot take, “Hitchhiker’s Guide To The Galaxy”. The radio play, books and 80s bbc show were not represented very well at all. They missed well over 75% of the jokes, Mos Def and Zooey Deschanel added nothing to it, and they added plots and scenes, I think just to get more “blockbuster actors” in, that ruin the original story of the radio play. Sam Rockwell, Alan Rickman/Warwick Davis and Bill Nightly were the highlights. One of the few movies I wish they would remake.
They seed the galaxy and harvest whole planets to create an immortality serum. Fantastic world concept ... but a subpar story to make a movie about within that world.
Basically every Terminator movie after T2. They have some great "what if" premises that could add so much depth to the world, but then struggle to see the vision through is a satisfying way.
T3: Let's actually show Judement Day
T4: Let's show the turning point in the war against the machines (edit: and why people follow John Connor as leader of the resistance)
A sci-fi post-apocalypse show where the premise is that all of a sudden all technology (specifically anything that uses electricity) just stops working and nobody knows why. The show takes place 15 years into the apocalypse. The US has Balkanized into various regional states (although you don't learn this until later). Some regions have devolved into chaos while others have basically reverted to a steam-punk type of society. Since all modern ships use electricity, they've begun to revive large ships from the age of sail. The remnants of the US military at Guantanamo Bay eventually return to the mainland and try to reestablish a much more explicitly authoritarian control over the US. You eventually learn that what caused the global blackout was the creation of a self-replication nanotech which rapidly spread across the planet and shut off all electricity.
Great premise, but it got too much into the soap-opera CW-style of writing and didn't last more than 2 seasons.
Wanted (2008) - The comics are brilliant, sharp, funny and intelligent. By leaving out everything smart/interesting from the comics they managed to create a mediocre action movie.
As featured in the picture, Reign of Fire. I had forgotten about it. I truly don't think there is a film out there that has represented dragons as I see them better.
Passengers had the possibility to be really creepy, I still liked it but without seeing Chris Pratts time alone first, we would have all been confused and on guard with Jennifer Lawrence.
I in no way call this "mediocre"; Its just a flat our terrible low budget bullshit film that the director made as an excuse to hang out with shirtless dudes.
But years ago the guys at Red Letter Media did a segment on "Bigfoot vs D.B. Cooper", and that premise alone (what happened after D.B. Cooper landed) has lived in my brain ever since.
It legitimately angers me that such a great high concept idea was completely wasted on what basically amounts to gay porn.
The Last Jedi was an amazing deconstruction of Star Wars. I don't think better execution would have helped it with a fan base that wants to be stuck in the past reliving the hero's journey ad nauseam but it had a lot more potential than you see on screen.
Just watched The Gorge (2025) recently. I wouldn't say it's a bad film, but it was really mediocre.
I love the premise of having the two guard towers, one on each side of a mysterious and foggy gorge, not supposed to communicate with each other, guarding us all from whatever is down there. People have previously gone in but never come out. Strange monsters sometimes attempt the climb up the cliff walls. Is it the gate to hell? What's the story behind it all? Chemistry slowly happens between the guards of the two towers.
(If you think you might enjoy this movie, don't read my spoilers. Just watch it. I liked it even though it was a bit disappointing.)
spoiler
But the good setup and world building is quickly over and then they both enter the gorge, and it's just an old evacuated biological lab that created super soldiers, and the whole thing instantly stops being mysterious.
They could have kept it mysterious for longer and given us some kind of twist perhaps, like they might discover they're guarding the site of an old defunct biolab, but some things don't add up, and it turns out to be the actual gates of hell. I also don't think Drasa should have dived straight in to rescue Levi. Let her hesitate for a while. Create tension. Keep them separated, him somewhere below and her in her tower (perhaps she will need to get over to his tower to reactivate the auto-turrets or do something important, she believes he's gone), and cut between showing both their struggles. Perhaps he then manages to contact her, and then a rescue effort begins.
Christian Bale faking an actually decent London accent, Gerard Butler being a loveable scot, and Matthew McCaughnehey doing his best Norse/Spartan Warrior impression?
Horrible acting all around (except Bale at times), the lead female character was basically there to soothe/flirt with the lead (wish i was joking), you can barely understand anyone, and yet really impressive set/castle and overall atmosphere. You believe you are there, and that the world is gone.
Huge gaps in logic on the hunting patterns of dragons, helicopters seem to run on infinite fuel, and the final plan to take down the main dragon is just stupid at best.... but the execution of fighting dragons in the air with nets dropped by guys without parachutes was a phenomenal air sequence.
Also, the dragon CGI holds up. You never quite see it, but when you do, you believe it's there, and the CGI team did a great job with consistency in that the dragons are always depicted expelling fluid that they ignite, and you see it every time they cast fire.
Brilliant movie, and one of the best opening 5 minutes in terms of origin story. Just a lot of bad acting, and some questionable feats in logic plot-wise.
Quite a few MST3K films have a decent premise IMO, but lacked either the budget or the talent to make enough of them.
Eg Time Chasers (which isn't really all that bad), The Skydivers, Moon Zero Two, Rocket Attack USA, Stranded in Space, and perhaps even Manos: The Hands of Fate.
With the right people, I think those and others could have been very decent movies.
I am 100% convinced they had a masterpiece and then test audiences didn't get it and they went and changed everything around and added the prologue and gave away the entire twist at the start by explicitly telling the viewer where and when we are. Also made the dinosaurs weird for .... reasons...?
Mutant Chronicles, except i don't think about it normally, but immediately comes to mind when somebody asks similar question. Also it wasn't mediocre, it was incredibly bad and the second biggest disapointment movie ever for me (worst was Starship Troopers 2).
The Fall Guy. The show had a very simple premise (stunt crew moonlights as bounty hunters) that really couldn't hold up after multiple seasons. The movie just floundered trying to do too much, and ended up far too inside baseball for normal viewers to really identify with.
First movie I saw in theaters that disappointed me.
Too much dinosaurs running around trying to kill everyone without standing still and asking why this is happening.
A quick jab towards the old man that the park is not considered ready for opening yet is not enough, or that he's packaging stuff?
The Goldblum character's logic failed to intrigue me. He would have been much better to ask the old man questions about park safety and genetic engineering safety that could be scrutinized instead of full on attacking him about commercialization.
It made the kids more interesting than the adults.
I forgot what the relationships between the two main characters and the children were, but I believe they were divorced and the kids were theirs?
At the very least they should have had some character development. Have them both end up with new partners or something and show what makes the new pairs better than the old one.