| When's Your Birthday? | |
| Director: | Harry Beaumont |
| Producer: | Robert Harris David L. Loew |
| Screenplay: | Harry Clork H.W. Hanemann Richard Macaulay |
| Starring: | Joe E. Brown Marian Marsh |
| Music: | Sam Wineland John Leipold Marlin Skiles |
| Cinematography: | George Robinson |
| Editing: | Jack Ogilvie |
| Studio: | David L. Loew Productions |
| Distributor: | Metro Goldwyn Mayer |
| Runtime: | 75 minutes |
| Country: | United States |
| Language: | English Spanish |
When's Your Birthday? is a 1937 American romantic comedy film directed by Harry Beaumont and starring Joe E. Brown. While original prints of this film had a cartoon sequence in Technicolor directed by Bob Clampett and Leon Schlesinger, most surviving prints (including the Internet Archive) have the sequence in black-and-white.
Dustin Willoughby is a prizefighter and believer in astrology who only wins when the stars are in alignment.