Gang War (released as All Square in the UK) is a 1928 American sound part-talkie gangster film directed by Bert Glennon, best known for being the main feature attached to Steamboat Willie, the debut of Mickey Mouse in sound. In addition to sequences with audible dialogue or talking sequences, the film features a synchronized musical score and sound effects along with English intertitles. The soundtrack was recorded using the RCA Photophone sound-on-film system. Despite the synchronised sound as well as the all-star cast, the film is largely unknown in its own right. One reel of an original 35mm positive print of nitrate film survives at the BFI film archive. The rest of the film appears to be lost. The film has been overshadowed by its far more famous preceding short, Steamboat Willie. The film starred Jack Pickford in his last major role as "Clyde", a saxophone player whose love for a dancer named Flowers (Olive Borden) traps him in the middle of a gang war.

Plot

The film follows the saxophone player Clyde, who busks on the San Francisco Bay waterfront. One night, he meets Flowers, and teaches her to dance, but finds that "Blackjack" (Eddie Gribbon), the leader of a ruthless gang, is also in love with her. Despite the intense turf war between "Blackjack" and a rival gangster named Mike Luego (Walter Long), "Blackjack" wins the heart of Flowers and marries her, but without consummating the marriage. Clyde is eventually able to win "Blackjack" over however, and "Blackjack" sacrifices himself to protect Clyde and Flowers from Luego.