Guarda Film Completo Online. A making-of documentary featuring interviews with actors Jeffrey Combs, Barbara Crampton and Ken Foree; screenwriter Dennis Paoli; producer Brian Yuzna; film editor Lee Percy; composer Richard Band; foley artist Vanessa Ament; effects supervisors Michael Deak and Anthony Doublin; effects artists William Butler, Gabriel Bartalos, John Naulin and Robert Kurtzman