Clownhouse - 1989 slasher film infamous for the director sexually abusing its 12-year-old actor between shoots

Francis Ford Coppola also backed this guy and told the kid who was abused that he'd "never work in the industry again." The more you read into this, the worse it gets.

Wow, from a Jeepers Creepers 3 review:

Addie is a brooding pool of sadness, presumably due to a combination of abject poverty and what can only be called tasteless, cursory allusions to a history of sexual abuse at the hands of her step-father. (One particularly odious character even goes so far as to remark, "Can you blame the step-dad though? I mean look at her. The heart wants what it wants, am I right?")