Underground is a 1928 British sound drama film directed by Anthony Asquith and starring Brian Aherne, Elissa Landi, Cyril McLaglen, and Norah Baring.

While the film has no audible dialogue, it was released with a synchronized musical score with sound effects, using both the sound-on-disc and sound-on-film process.

The film has strong roles for the two leading women, while the men are more clichéd, one a villain and the other a blue-eyed, blond angel.

The film featured a theme song entitled "Arms Of Love", composed by Alfred Bryan and Francis Wheeler (words) and Pete Wendling (music).

Underground was made by British Instructional Films at Elstree and Cricklewood Studios[2] and on location in London including scenes shot at Lots Road Power Station in Chelsea.