The Honeymoon Machine is a 1961 American comedy film directed by Richard Thorpe and starring Steve McQueen, Brigid Bazlen, Jim Hutton, Paula Prentiss, Jack Mullaney and Dean Jagger, based on the 1959 Broadway play The Golden Fleecing by Lorenzo Semple Jr.

In the film, three men devise a plan to win at roulette with a United States Navy computer.

He and his friend Lieutenant Ferguson Howard realize that by using MACS to record a roulette table's spins over time, the computer can predict future results.

Bosley Crowther, critic for The New York Times was unimpressed, writing, "It is a wild and labored operation, and when it finally comes to an end, one wonders whether it has even been bona fide farce.

"[4] Steve McQueen walked out of the first public sneak preview and vowed never to work for MGM again, despite being under contractual obligation for two more pictures.