Sanctum

Sanctum iPod Movie Plot:

Based on a true story and using technology developed by executive producer James Cameron, this breathtaking thriller follows the adventures of expert diver Frank McGuire (Richard Roxburgh), who heads an expedition to map a network of underwater caverns. When a tropical storm cuts off their exit, the team, including Frank's teenage son, must use all their resources and strength to avoid panic and find a route to the surface. Ioan Gruffudd co-stars.