The Descent (2006)

A caving expedition goes horribly wrong, as the explorers become trapped and ultimately pursued by a strange breed of predators.

Director: Neil Marshall

Cast: Shauna Macdonald, Natalie Mendoza, Alex Reid, Saskia Mulder, MyAnna Buring, Nora-Jane Noone, Oliver Milburn, Molly Kayll, Craig Conway, Leslie Simpson, Mark Cronfield, Stephen Lamb, Catherine Dyson, Julie Ellis, Sophie Trott, Tristan Matthiae, Stuart Luis, Justin Hackney