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| Ano | Nota | Título | Personagem |
|---|---|---|---|
| 1974 | A Marca do Zorro | Adaptation | |
| 1969 | The Mad Room | Writer | |
| 1963 | Dracula | Writer | |
| 1946 | Inside Job | Story | |
| 1945 | Blood on the Sun | Writer | |
| 1945 | The Man in Half Moon Street | Adaptation | |
| 1943 | Bataan | Writer | |
| 1942 | Vida Contra Vida | Screenplay | |
| 1942 | Dr. Broadway | Additional Writing | |
| 1942 | Dama Por Uma Noite | Story | |
| 1941 | Herança de Ódio | Screenplay | |
| 1941 | Ladies in Retirement | Screenplay | |
| 1940 | A Marca do Zorro | Adaptation | |
| 1939 | The Zero Hour | Story | |
| 1939 | Panama Lady | Story | |
| 1939 | 12 Horas de Aflição aka 12 Horas de Terror | Story | |
| 1936 | A Boneca do Diabo | Screenplay | |
| 1936 | A Filha de Drácula | Screenplay | |
| 1935 | Jalna | Adaptation | |
| 1934 | Mills of the Gods | Writer | |
| 1934 | Private Scandal | Writer | |
| 1934 | A Patrulha Perdida | Adaptation | |
| 1933 | Before Dawn | Screenplay | |
| 1932 | 70,000 Witnesses | Screenplay | |
| 1932 | Young Bride | Screenplay | |
| 1932 | Panama Flo | Story | |
| 1931 | Frankenstein | Screenplay | |
| 1931 | Drácula (Versão Espanhol) | Writer | |
| 1931 | Drácula | Screenplay | |
| 1931 | La carta | Writer | |
| 1930 | Doña mentiras | Adaptation | |
| 1930 | Scotland Yard | Writer | |
| 1930 | Outside the Law | Writer | |
| 1930 | Dangerous Nan McGrew | Story | |
| 1930 | Um Romance em Veneza | Story | |
| 1929 | The Return of Sherlock Holmes | Writer | |
| 1929 | Aplausos | Adaptation | |
| 1929 | The Lady Lies | Adaptation | |
| 1929 | Jealousy | Writer | |
| 1929 | A Carta | Screenplay | |
| 1928 | Naughty Baby | Writer | |
| 1927 | The Prince of Headwaiters | Story | |
| 1927 | The Yankee Clipper | Adaptation | |
| 1927 | White Gold | Adaptation | |
| 1927 | The Bachelor's Baby | Story | |
| 1926 | Bachelor Brides | Writer | |
| 1926 | Gigolo | Writer | |
| 1926 | Made for Love | Story | |
| 1925 | The Midnight Girl | Story | |
| 1925 | Ports of Call | Story | |
| 1924 | The Fire Patrol | Writer | |
| 1924 | In Fast Company | Writer | |
| 1924 | On Time | Writer | |
| 1922 | Gay and Devilish | Writer | |
| 1922 | Five Days to Live | Writer |