Wicked

LOL I grew watching Little House on the Prairie where they burned down a school for the blind and had a 2 part rapist-on-the-loose episode.
If I'm understanding correctly this wasn't a disclaimer shown prior to the movie but a website that does deep dives into content

Now the 70s was definitely a different time, but if there was something called Family TV Viewing at the time maybe it would have mentioned the arson or rapist