The Cave (2005)

Cast: Cole Hauser, Lena Headey, Morris Chestnut, Eddie Cibrian, Piper Perabo, Daniel Dae Kim, Kieran Darcy-Smith, Rick Ravanello, Marcel Iureș, Vlad Rădescu

After a group of biologists discovers a huge network of unexplored caves in Romania and, believing it to be an undisturbed eco-system that has produced a new species, they hire the best American team …