Saw Sanctum yesterday and thought it was absolutely AMAZING! Fabulous scenery and action shots. The 3D effects took you right inside of the water-filled caves which could make for a claustrophobic feeling. There were some frightening realistic scenes relevant to the dangerous sport of caving! Unique in being so different and showed guts. Really great movie...well made. some have said the dialogue was sparse but who can make sparkling conversation when faced with the prospect of dying in there...get real! We all thought it was perfect.