Leonard Penn Collaberations
| Film Title | Role | Collaboration Count |
|---|---|---|
| David Niven | Actor | 1 |
| Ginger Rogers | Actor | 1 |
| Charles Coburn | Actor | 1 |
| Roy Webb | Composer | 1 |
| Robert De Grasse | Cinematographer | 1 |
| Frank Albertson | Actor | 1 |
| Henry Berman | Editor | 1 |
| Ferike Boros | Actor | 1 |
| E.E. Clive | Actor | 1 |
| Elbert Coplen Jr. | Actor | 1 |
| Buddy G. DeSylva | Producer | 1 |
| Felix Jackson | Writer | 1 |
| Garson Kanin | Director | 1 |
| Norman Krasna | Writer | 1 |
| Paul Stanton | Actor | 1 |
| Ernest Truex | Actor | 1 |
| Robert Wise | Editor | 1 |
| Bob Kane | Writer | 1 |
| Ira H. Morgan | Cinematographer | 1 |
| Jane Adams | Actor | 1 |
| Spencer Gordon Bennet | Director | 1 |
| Dwight Caldwell | Editor | 1 |
| Royal K. Cole | Writer | 1 |
| Johnny Duncan | Actor | 1 |
| William Fawcett | Actor | 1 |
| Ralph Graves | Actor | 1 |
| Don C. Harvey | Actor | 1 |
| Sam Katzman | Producer | 1 |
| Robert Lowery | Actor | 1 |
| George H. Plympton | Writer | 1 |
| Joseph F. Poland | Writer | 1 |
| Lyle Talbot | Actor | 1 |
| Earl Turner | Editor | 1 |
| Rick Vallin | Actor | 1 |
| Michael Whalen | Actor | 1 |