“Mogwais” are cute, cuddly creatures that make great pets…so long as the rules are followed. They're not, of course, and soon malicious “gremlins” are wreaking havoc. Executive produced by Steven Spielberg from a script by Chris Columbus (The Goonies). Billed as a comedy horror movie, some violent scenes prompted the creation of the PG-13 rating for future films. (“Never feed him after midnight.”) Directed by Joe Dante; Starring Zach Galligan, Hoyt Axton, Frances Lee McCain, Phoebe Cates, Polly Holliday, Scott Brady, Glynn Turman, Keye Luke.