SoCoMoGro cavers and friends got together for the opening of "Sanctum". The caving scenes were more believable than usual...even realistic. The main character, the expedition leader, was interesting, but the other players were a bit on the expendable side with uninspiring personalities and dialog. Still, the movie was worth seeing. It's the closest attempt I've seen to duplicate the real dangers and potential terrors and thrills of caving without throwing in prehistoric flesheaters.