Foley is the reproduction of everyday sound effects that are added to film, video, and other media in post-production to enhance audio quality. The best Foley art is so well integrated into a film that it goes unnoticed by the audience. It helps to create a sense of reality within a scene. Without these crucial background noises, movies feel unnaturally quiet and uncomfortable. See if you can notice the foley that has been integrated into the sound score of these movie trailers.