Within the Rock (1996)
Within the Rock, is a 1996 science fiction horror film/monster movie/slasher TV-Movie directed by Gary J. Tunnicliffe produced among others; actor, Robert Patrick and filmed in the USA. It starred Xander Berkeley, Brian Krause, Duane Whitaker and a cameo from former U.S. Marine Corps captain and technical advisor, Dale Dye.
More at Wikipedia.