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 |