| Der Fluch | 1925 | Writer |
| Küssen ist keine Sünd' | 1926 | Writer |
| Le Masque d'épouvante | 1926 | Writer |
| Seine Hoheit, der Eintänzer | 1927 | Writer |
| Faschingszauber | 1927 | Writer |
| Die Beichte des Feldkuraten | 1927 | Screenplay |
| Das Heiratsnest | 1927 | Screenplay |
| Die elf Teufel | 1927 | Writer |
| Tingel Tangel | 1927 | Writer |
| Die indiskrete Frau | 1927 | Writer |
| Die Dollarprinzessin und ihre sechs Freie | 1927 | Writer |
| Der Bettelstudent | 1927 | Writer |
| Dragonerliebchen | 1928 | Writer |
| Der Faschingsprinz | 1928 | Writer |
| Fräulein Fähnrich | 1929 | Writer |
| Die Zirkusprinzessin | 1929 | Screenplay |
| Die Frau, die jeder liebt, bist du! | 1929 | Writer |
| Der lustige Witwer | 1929 | Writer |
| Der schwarze Domino | 1929 | Writer |
| La Prisonnière n°7 | 1929 | Writer |
| Dich hab’ ich geliebt | 1929 | Writer |
| Die Nacht gehört uns | 1929 | Writer |
| Hokuspokus | 1930 | Writer |
| The Temporary Widow | 1930 | Writer |
| Ein Tango für Dich | 1930 | Writer |
| Wie werde ich reich und glücklich? | 1930 | Writer |
| Brand in der Oper | 1930 | Writer |
| Das Flötenkonzert von Sans-Souci | 1930 | Writer |
| Der Herr auf Bestellung | 1930 | Screenplay |
| Die lustigen Weiber von Wien | 1931 | Writer |
| Im Geheimdienst | 1931 | Writer |
| Der Raub der Mona Lisa | 1931 | Screenplay |
| Liebeskommando | 1931 | Writer |
| Die Gräfin von Monte-Christo | 1932 | Writer |
| Der Prinz von Arkadien | 1932 | Writer |
| Ein blonder Traum | 1932 | Writer |
| I.F.1 ne répond plus | 1932 | Screenplay |
| Moi et l'imprératrice | 1933 | Writer |
| The Song You Gave Me | 1933 | Writer |
| Saison in Kairo | 1933 | Writer |
| La Vie tendre et pathétique | 1933 | Screenplay |
| Unfinished Symphony | 1934 | Writer |
| Maskerade | 1934 | Writer |
| Casta diva | 1935 | Writer |
| Escapade | 1935 | Screenplay |
| Escapade | 1935 | Producer |
| Episode | 1935 | Writer |
| Silhouetten | 1936 | Producer |
| Silhouetten | 1936 | Writer |
| Men Are Not Gods | 1936 | Writer |
| Toute la ville danse | 1938 | Screenplay |
| Ninotchka | 1939 | Screenplay |
| Lady Hamilton | 1941 | Screenplay |
| Illusions perdues | 1941 | Screenplay |
| Seven Sweethearts | 1942 | Screenplay |
| Le Corps céleste | 1944 | Screenplay |
| Hantise | 1944 | Screenplay |
| Song of Scheherazade | 1947 | Writer |
| L'Éventail de Lady Windermere | 1949 | Writer |
| La mère du marié | 1951 | Writer |
| Agence Cupidon | 1951 | Writer |
| Niagara | 1953 | Writer |
| Titanic | 1953 | Screenplay |
| La mouche | 1954 | Writer |
| Casta diva | 1954 | Screenplay |
| La Fille sur la balançoire | 1955 | Screenplay |
| Teenage Rebel | 1956 | Writer |
| Einmal eine große Dame sein | 1957 | Writer |
| Stopover Tokyo | 1957 | Screenplay |
| Stopover Tokyo | 1957 | Producer |
| Fräulein | 1958 | Producer |
| The Remarkable Mr. Pennypacker | 1959 | Writer |
| Voyage au centre de la Terre | 1959 | Screenplay |
| On a volé la Joconde | 1966 | Screenplay |
