Moods of the Sea (1941) is a non-narrative experimental film by Slavko Vorkapich and John Hoffman, set to the music of Felix Mendelssohn known as the Hebrides (Fingal's Cave) Overture. The film is considered to be an early example of American avant-garde and experimental film. It is currently held in the Vorkapich – Hoffman Collection at the USC School of Cinematic Arts.