You all remember just a few weeks ago when Sony ripped away a bunch of movies and TV shows people “owned”? This ad is on Amazon. You can’t “own” it on Prime. You can just access it until they lose the license. How can they get away with lying like this?
When you click "buy" or "purchase" on a video on Amazon Prime, you're not actually coming into ownership of that movie of TV show. Instead, you're merely paying for a limited license for “on-demand viewing over an indefinite period of time", as warned in the very small print on the company's website.