The Birds (movie)
Evan Hunter did the screenplay for the movie. It is based on Daphne du Maurier's novella "The Birds". Hitchcock wanted the movie to start funny and end with horror. The audience would know bird attacks would come but not when. These things would create suspense. Hitchcock really liked suspense. The movie was to be shocking. Hunter and Hitchcock developed the story. Hitchcock wanted the ending to be puzzling and not clear. So he cut part of the original ending out.