The Quatermass Xperiment
- År: 1955
- Land: United Kingdom
- Genre: Science Fiction, Skräck, Mystik
- Studio: Hammer Film Productions, Exclusive Films
- Nyckelord: london, england, transformation, alien life-form, rocket, rocket crash, escaped patient, hospital, space exploration, alien organism, westminster abbey, cactus
- Direktör: Val Guest
- Kasta: Brian Donlevy, Jack Warner, Richard Wordsworth, Margia Dean, Thora Hird, Gordon Jackson