| Release Date | 31 October 1951 |
| Genre | Comedy, Drama, Romance |
| Country | USA |
| Language | English |
| Sound Mix | Mono |
| Color | Black and White |
| Film Type | Feature |
| Film Class | Romantic Comedy |
| Themes | Crumbling Marriages, Love Triangles, Gambling |
| Tones | Humorous, Light, Witty, Talky, Sweet |
| Tags | Daughter, Love Triangle, Marriage Problems, Millionaire, Old Flame |
Let's Make It Legal is a 1951 comedy film made by Twentieth Century-Fox, directed by Richard Sale and produced by Robert Bassler from a screenplay by I.A.L. Diamond and F. Hugh Herbert, based on a story by Mortimer Braus entitled "My Mother-in-Law, Miriam". The music was by Cyril J. Mockridge and the cinematography by Lucien Ballard.