Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Casablanca | 1942 | |
| Writer | Arsenik och gamla spetsar | 1944 | |
| Writer | Järnkorset | 1977 | |
| Writer | Skicka inga blommor | 1964 | |
| Writer | Yankee Doodle Dandy | 1942 | |
| Writer | Jag minns Paris | 1954 | |
| Writer | The Brothers Karamazov | 1958 | |
| Writer | The Reluctant Debutante | 1958 | |
| Writer | The Man Who Came to Dinner | 1942 | |
| Writer | Young at Heart | 1954 | |
| Writer | Romance on the High Seas | 1948 | |
| Writer | The Tender Trap | 1955 | |
| Writer | Mr. Skeffington | 1944 | |
| Producer | Mr. Skeffington | 1944 | |
| Writer | Four Daughters | 1938 | |
| Writer | The Strawberry Blonde | 1941 | |
| Writer | Kiss Them for Me | 1957 | |
| Writer | Tall Story | 1960 |