Worked at Kalem, Biograph and for Hal Roach. Best known for directing the classic Laurel & Hardy comedy Big Business (1929). Ended his career as director of serials and second features at Columbia.
While other directors worked on some of Laurel & Hardy's English-language films, producer Hal Roach preferred Horne to work on the German, Spanish and French versions.
Joined Hal Roach Studios in 1928, directing his first film there the following year--Big Business (1929), which is regarded as a silent classic. He left Roach in 1932, returning in 1935 and the following year directed the Laurel & Hardy classic Way Out West (1937).
Unable to find an actor he thought suitable to play an Arabian Riff chieftain in the Laurel & Hardy comedy Beau Hunks (1931), he played the part himself.