25 best alien movies ever

Quatermass and the Pit (1967)

Nigel Kneale's chilling TV classic made the transition to the big screen courtesy of horror studio Hammer – and true to form, there are plenty of supernatural elements to this sci-fi tale. When Martian relics are uncovered during an archaeological dig, it soon becomes apparent that the aliens are responsible for the human race's latent psychic memories of the devil – and the human impulse towards aggression.

Although the film's special effects haven't held up over time, it's an interesting piece of ideas-based science fiction.