According to OK! magazine, the two stars have hated each other for years and their relationship only got worse after Jolie, 41, decided to pass on the remake of "Murder on the Orient Express". She was apparently upset when Theron, 41, was considered to replace her in the movie.
"Angie is starting to think Charlize is obsessed with her and she's sick and tired of it. She feels Charlize goes out of her way to target roles she's associated with," a source said, adding that Theron didn't even care about Jolie's opinions about her.