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.

Examples of the "moods" of the sea include waves crashing against a rocky cliff and calmly lapping at a beach and rocks.

[4] Vorkapich was unable to release Moods of the Sea upon completing it alongside Hoffman, due to a lack of funding and studio interest.

[7][8] It was then included in the 7-disc DVD collection Unseen Cinema: Early American Avant Garde Film 1894-1941, released in October 2005.

"[13] The Chicago Reader noted that the film was an example of films that "register quite differently than their makers intended: Slavko Vorkapich and John Hoffman's impressionistic, somewhat pompous Moods of the Sea (1942) tries to marry ocean imagery with the Mendelssohn on its sound track (crashing waves for loud sections, birds for calm ones), and while it's hard to take as seriously as it seems to demand, it fascinates by pushing the visualization of music to such an extreme.