Stop Or My Mom Will Shoot (1992)
A tough police sergeant's mother comes to visit him, and promptly starts trying to fix up his life, much to his embarrassment. For his birthday she buys him a machine gun out of the back of a van, and begins to further interfere with his job and love life, eventually helping him with a case he's on.
Directed by: Roger Spottiswoode
Starring: Sylvester Stallone, Estelle Getty, JoBeth Williams, Roger Rees, Martin Ferrero, Gailard Sartain
Links: Universal Studios, IMDb, Movie posters, Movie stills