There are movies that you've never seen, but you know something about them from the news coverage. Or maybe you saw them and vaguely recall what they're about, but you remember the story of how they were filmed. Movie productions can generate a lot of drama that has nothing to do with the plot or what goes on the silver screen. The brouhaha about the conflicting personalities surrounding the film Don't Worry Darling is an example. If you don't recognize the title, that's because the movie hasn't hit theaters yet. But you've read about the conflicts between Olivia Wilde, Florence Pugh, Harry Styles, Chris Pine, and Shia LaBeouf. Or at least you've seen the headlines.
There have been plenty of movies like that. If you know anything at all about What Happened to Baby Jane? you know that it starred Joan Crawford and Bette Davis, who hated each other. The story behind their conflict is long and involved, and led to injuries on the set. You may or may not have seen Mr. and Mrs. Smith, but you know that's where Brad Pitt met Angelina Jolie. Read the stories behind 13 such films at Buzzfeed.