X the Unknown

X the Unknown is a British science fiction/horror film directed by Leslie Norman and released in 1956. The plot revolves around an ever-growing mound of radioactive slime that crawls out of a fissure in the Scottish countryside. Filmed at Bray Studios in England, X the Unknown capitalized on the growing trend in cinema to produce creatures born of atomic mutation and science gone wrong. X the Unknown is a precursor to the campy 1958 sci-fi/horror comedy The Blob. The film was originally intended as a sequel to the popular 1955 film The Quatermass Xperiment, but screenwriter Nigel Kneale did not allow Hammer the rights to use his protagonist Bernard Quatermass.

Appearances