‘The eye-gouging was very, very satisfying’: how we made cave horror classic The Descent

‘The child crawler whose head I crush with my boot was only 11, bless him. It was actually me stamping on a cauliflower’ I was introduced to Christian Colson at Celador Films off the back of [2002 horror film] Dog Soldiers, and I pitched them a project – actually a feature-length version of my student graduation film – about zombies on an oil rig. They liked it but said it was too expensive, so on