   the quatermass xperiment (us title: the creeping unknown) is a 1955 british science fiction horror film. made by hammer film productions, it is based on the 1953 bbc television serial the quatermass experiment written by nigel kneale. produced by anthony hinds and directed by val guest, it stars brian donlevy as the eponymous professor bernard quatermass. jack warner, richard wordsworth and margia dean appear in supporting roles. three astronauts are launched into space in a rocket designed by quatermass, but the spacecraft returns to earth with only one occupant, victor carroon (richard wordsworth). something has infected him during the spaceflight, and he begins mutating into an alien organism which, if it spores, will engulf and destroy humanity. when the carroon-creature escapes from custody, quatermass and scotland yard's inspector lomax (jack warner), have just hours to track it down and prevent a catastrophe. ==plot== the british rocket group, headed by professor bernard quatermass, launches its first rocket into space. shortly after its launch, all contact with the rocket and the three occupants â carroon, reichenheim and green â is lost. the rocket returns to earth, crashing in an english field. quatermass and his assistant briscoe arrive at the scene, along with the emergency services. opening the rocket's hatch, they find only carroon; there is
1950s_science_fiction_films 1950s_science_fiction_horror_films 1955_films Black-and-white_films British_films British_science_fiction_films English-language_films Films_based_on_television_series Films_directed_by_Val_Guest Films_set_in_London Hammer_Film_Productions_horror_films Monster_movies Quatermass