It Conquered the World

It Conquered the World (1956)

Every man its prisoner... every woman its slave!

  • Genre: Science Fiction, Thriller, Horror
  • Release Date: 1956-07-14
  • User Rating: 4.8/10 from 47 ratings
  • Runtime: 1h 11min
  • Language: English
  • Production Company: Sunset Productions
  • Production Country: United States of America
  • Director: Roger Corman
star 4.8/10
From 47 Ratings


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.

It Conquered the World Trailer

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  • Lee Van Cleef

    as Dr. Tom Anderson
  • Beverly Garland

    as Claire Anderson
  • Peter Graves

    as Dr. Paul Nelson
  • Sally Fraser

    as Joan Nelson
  • Russ Bender

    as General James Pattick
  • Jonathan Haze

    as Pvt. Miguel Ortiz
  • Dick Miller

    as Sgt. Neil
  • Paul Harbor

    as Floyd Mason
  • Charles B. Griffith

    as Dr. Pete Shelton
  • Karen Kadler

    as Ellen Peters
  • Taggart Casey

    as Sheriff N.J. Shallert
  • Thomas E. Jackson

    as George Haskell
  • Marshall Bradford

    as U.S. Secretary Platt
  • David McMahon

    as Gen. Carpenter
  • Paul Blaisdell

    as The Monster (uncredited)
Writing Charles B. Griffith Writer
Production Samuel Z. Arkoff Executive Producer
Production James H. Nicholson Executive Producer
Sound Ronald Stein Original Music Composer
Crew Paul Blaisdell Special Effects
Production Roger Corman Producer
Directing Roger Corman Director
Editing Charles Gross Jr. Editor
Writing Lou Rusoff Screenplay
Camera Frederick E. West Director of Photography
Costume & Make-Up Larry Butterworth Makeup Artist
Production Lou Place Production Manager
Visual Effects Paul Blaisdell Creature Design
Sound Jay Ashworth Sound
Sound Al Overton Sound
Sound Philip Mitchell Sound