iReport — A subterranean thriller may just leave you trapped in your seat, with feelings of claustrophobia and suffocation. Sound like fun ? I mean really, do you want to know what its like to be trapped  in underwater caves with rising tides and dwindling supplies ? Well "Sanctum" in 3D is the movie for you. A team of underwater cave divers get trapped underground after a tropical storm and when their exit gets blocked, the only way out is down, fighting raging water, deadly terrain and creeping panic as they search for an escape route to the sea. The biggest star of film is not even on camera. James Cameron is an  executive producer and he lends a hand by allowing the film to be shot with his special "Avatar" cameras. Richard Roxburgh plays the obsessed caver. Rhys Wakefield plays the part as Roxburgh’s son. The father-son due carry the film. Also Ioan Gruff (Of Fantastic Four fame) plays the evil financier. Will they get out alive or will they be trapped forever ?The film is "inspired by true events", but the reality is thissurvival saga suffers from hammy actingand cliché-riddled dialogue. 3D doesn't enhance the movie, if anything it makes it more claustrophobic and uncomfortable. Many of the deaths in the film are grotesquely graphic, making it more of a horror film than a thriller. The flick-o-meter gives "Sanctum" a three out of five. I almost gave this a two-point-five but I only do round numbers. The visuals are often breathtaking, the underwater shots amazing !  Turn down the volume and just sit back and look at the pretty pictures, its better that way. You can stay in touch with me via My website RSS Twitter FaceBook Itunes Podcast RSS