 The Mad Room1969 · Writer | Writer |
 Dracula1963 · Writer | Writer |
 Blood on the Sun1945 · Writer | Writer |
 Bataan1943 · Writer | Writer |
 Street of Chance1942 · Screenplay | Screenplay |
 Among the Living1941 · Screenplay | Screenplay |
 Ladies in Retirement1941 · Screenplay | Screenplay |
 The Devil-Doll1936 · Screenplay | Screenplay |
 Dracula's Daughter1936 · Screenplay | Screenplay |
 Mills of the Gods1934 · Writer | Writer |
 Private Scandal1934 · Writer | Writer |
 Before Dawn1933 · Screenplay | Screenplay |
 70,000 Witnesses1932 · Screenplay | Screenplay |
 Young Bride1932 · Screenplay | Screenplay |
 Frankenstein1931 · Screenplay | Screenplay |
 El impostor1931 · Screenplay | Screenplay |
 Drácula1931 · Writer | Writer |
 Dracula1931 · Screenplay | Screenplay |
 The Letter1931 · Writer | Writer |
 Scotland Yard1930 · Writer | Writer |
 Outside the Law1930 · Writer | Writer |
 The Return of Sherlock Holmes1929 · Writer | Writer |
 Jealousy1929 · Writer | Writer |
 The Letter1929 · Screenplay | Screenplay |
 Naughty Baby1928 · Writer | Writer |
 Bachelor Brides1926 · Writer | Writer |
 Gigolo1926 · Writer | Writer |
 The Fire Patrol1924 · Writer | Writer |
 In Fast Company1924 · Writer | Writer |
 On Time1924 · Writer | Writer |
 Gay and Devilish1922 · Writer | Writer |
 Five Days to Live1922 · Writer | Writer |
