Classic public domain film, digitally preserved and free to stream forever.
Submarine (1928) is a gripping early sound-era adventure drama in which two deep-sea divers and close friends fall for the same woman, and their friendship is put to a deadly test when one of them becomes trapped in a sunken submarine on the ocean floor.
Starring Jack Holt, Dorothy Revier, and Ralph Graves. This film is in the public domain and free to watch, download, and share.