The term 'ADDS SOUND EFFECTS TO A FILM' can be summarized as the job of looping. Looping is a post-production process in which sound effects are added to a film or video. This process involves taking existing sounds and repeating them in order to create a continuous soundscape that matches the visuals of the film. Looping is an important part of the filmmaking process, as it helps to create a more immersive experience for viewers.