Huth made his screen debut as an actor in the 1927 film One of the Best, directed by T. Hayes Hunter at Gainsborough Pictures.

[5][6] Huth went on to have roles in A South Sea Bubble (1928) with Ivor Novello, directed by Hunter; The Triumph of the Scarlet Pimpernel (1928) with Matheson Lang, playing Louis Antoine de Saint-Just; and The Silver King (1929), directed by Hunter, with Percy Marmont and Chili Bouchier.

Huth had the male lead in Downstream (1929) opposite Chili Bouchier, directed by Giuseppe Guarino.

Huth's first screenplay credit was in Madame Guillotine (1931), starring Madeleine Carroll, and directed by Fogwell.

Huth had support parts in Rome Express (1932); Discord (1932); My Lucky Star (1933), with Florence Desmond; The Ghoul (1933), with Boris Karloff and directed by Hunter; and The Camels Are Coming (1934) with Jack Hulbert.

Huth also moved into producing with Busman's Honeymoon (1940), shot in Britain for MGM starring Robert Montgomery.

He worked as producer on "Pimpernel" Smith (1941) for Leslie Howard[11] and over at British Mercury he co-directed Breach of Promise (1942).

Huth joined Gainsborough Pictures, for whom he produced a melodrama, Love Story (1944), with Margaret Lockwood, Stewart Granger and Patricia Roc; it was a huge commercial success.

Huth went to work as an associate producer at Warwick Films for Irwin Allen and Albert Broccoli, helping make The Man Inside (1958), Idol on Parade (1959), The Bandit of Zhobe (1959), Jazz Boat (1960), The Trials of Oscar Wilde (1960) and In the Nick (1961).