It Conquered the World 1956

Synopsis:

An alien from Venus tries to take over the world with the help of a disillusioned human scientist, as his wife, his best friend and the friend's wife try to intervene.

Directed by: Roger Corman
Written by: Charles B. Griffith & Lou Rusoff
Runtime: 71 minutes
Critics score:
Tagline: Every man its prisoner... every woman its slave!
Cast:
Lee Van Cleef
Lee Van Cleef
Dr. Tom Anderson 
Beverly Garland
Beverly Garland
Claire Anderson 
Peter Graves
Peter Graves
Dr. Paul Nelson 
Sally Fraser
Sally Fraser
Joan Nelson 
Russ Bender
Russ Bender
General James Pattick 
Jonathan Haze
Jonathan Haze
Pvt. Miguel Ortiz