The Descent is a 2005 British adventure horror thriller movie written and directed by Neil Marshall. The film follows six women who, having entered a cave system, struggle to survive against the humanoid creatures inside. Filming took place in the United Kingdom. Exterior scenes were filmed at Ashridge Park, Hertfordshire, and in Scotland.
Because the filmmakers considered it too dangerous and time-consuming to shoot in an actual cave, interior scenes were filmed on sets built at Pinewood Studios near London designed by Simon Bowles.