Thirty Day Princess
- Cast: Sylvia Sidney, Cary Grant, Edward Arnold, Henry Stephenson, Vince Barnett
- Duration: 74 minutes
- Genre: Comedy, Romance
- Rating: 6.8/10
- Release Date: 1934-05-18
A European princess arrives in New York City to secure a much-needed loan for her country. She contracts the mumps, and an actress who looks exactly like her is hired to impersonate her.
