10 Actors And Directors Who Absolutely Hated Each Other
Film: Knocked Up
Maybe "hated" is a strong word here. Perhaps there's less hate and more general disinterest and hurt feelings. Be that as it may, the falling out between Katherine Heigl and Judd Apatow was a very public one.
After the release of the hit comedy, Knocked Up, Heigl lamented that the film was "a little sexist". She also took exception to how her character - and women in general - was portrayed, arguing that the film "It paints the women as shrews, as humorless and uptight." Rogen went on to call her crazy, while Apatow told Howard Stern that he had yet to receive an apology.
Though, to be fair, Apatow defended her, saying, "She doesn't need to apologize for anything... She didn't like it but she was so awesome in it, so it was confusing."
Though Heigl finally apologized in 2016, the damage to her career was done. Heigl has long been dogged by rumors that she's difficult to work with. Whether or not those are true, the Knocked Up fiasco certainly doesn't help dispel them.
The hatchet seems to have been buried, at least on Rogen's part. Recently, he praised Heigl's work in the film, and said that he'd "make a dozen movies with her."