“Double Indemnity” is a film noir by Billy Wilder. He directed this movie in 1944, during World War II. This movie’s main sound was a extra-diegetic sound. A voiceover was used for Walter Neff to show his point of view and thoughts of the actions he committed. Wilder, also, did the voiceover to show that Walter wanted to tell the story to his good friend, Barton Keyes. Throughout the movie, there is a series of “mono sounds.” There is a low music that is heard in the background throughout the movie. During the scene in which Phyllis is planning on killing Walter, she has music playing and we can hear it as Walter talks to her and tells her that he will shut it off because he does not like it. Before the death, Walter was walking to the