| The Westerners | 1919 | Writer |
| Flame of the Desert | 1919 | Writer |
| The Cup of Fury | 1920 | Writer |
| Li Ting Lang | 1920 | Writer |
| An Arabian Knight | 1920 | Writer |
| The Killer | 1921 | Writer |
| Black Roses | 1921 | Writer |
| The Man Of The Forest | 1921 | Writer |
| My Dad | 1922 | Writer |
| The Victor | 1923 | Writer |
| Hook and Ladder | 1924 | Writer |
| The Sawdust Trail | 1924 | Writer |
| The Dangerous Flirt | 1924 | Screenplay |
| The Ridin' Kid from Powder River | 1924 | Writer |
| Silk Stocking Sal | 1924 | Writer |
| The Hurricane Kid | 1925 | Writer |
| The Man in Blue | 1925 | Writer |
| The Calgary Stampede | 1925 | Writer |
| Rustlers' Ranch | 1926 | Writer |
| The Seventh Bandit | 1926 | Writer |
| The Unknown Soldier | 1926 | Writer |
| The Frontier Trail | 1926 | Screenplay |
| The Terror | 1926 | Writer |
| Tell It to the Marines | 1926 | Screenplay |
| The Law of the Range | 1928 | Writer |
| Across to Singapore | 1928 | Writer |
| The Actress | 1928 | Writer |
| Honeymoon | 1928 | Writer |
| The Flying Fleet | 1929 | Screenplay |
| Wild Orchids | 1929 | Screenplay |
| Estrellados | 1930 | Writer |
| Buster s'en va-t-en guerre | 1930 | Writer |
| Men of the North | 1930 | Writer |
| De frente, marchen | 1930 | Writer |
| Trader Horn | 1931 | Screenplay |
| La Pente | 1931 | Screenplay |
| The Spirit of Notre Dame | 1931 | Screenplay |
| Private Lives | 1931 | Screenplay |
| The Impatient Maiden | 1932 | Screenplay |
| Night World | 1932 | Screenplay |
| Cocktail Hour | 1933 | Screenplay |
| The Meanest Gal in Town | 1934 | Writer |
| The Winning Ticket | 1935 | Screenplay |
| Dangerous Waters | 1936 | Screenplay |
| The Devil Is a Sissy | 1936 | Screenplay |
| La Flèche Noire | 1948 | Screenplay |
| Cagliostro | 1949 | Screenplay |
| Davy Crockett, Indian Scout | 1950 | Screenplay |
| The Iroquois Trail | 1950 | Screenplay |
| Kim | 1950 | Screenplay |
| Lorna Doone | 1951 | Screenplay |
| Les Éclaireurs du Texas | 1951 | Screenplay |
| Les Derniers Jours De La Nation Apache | 1952 | Screenplay |
| La Folie de L'or | 1952 | Screenplay |
| The Bandits of Corsica | 1953 | Writer |
| The Steel Lady | 1953 | Screenplay |
| Les brigands de l'Arizona | 1954 | Screenplay |
| L'as de la gâchette | 1955 | Screenplay |
| Gun Brothers | 1956 | Screenplay |
| Cinq fusils à Tombstone | 1961 | Screenplay |
| Gun Fight | 1961 | Screenplay |
| Lancelot, Chevalier De La Reine | 1963 | Writer |
