Aliens of the Deep(2005)

Director James Cameron takes 3D IMAX cameras back under water, this time to the Mid-Ocean Ridge, a submerged chain of mountains that winds 46,000 miles around the globe. These vents spew constant clouds of super-heated water, creating active hydrothermal vent communities that team with life. The creatures are abundant and very strange, including 6-foot tall worms with blood-red plumes, white crabs, and a biomass of blind, white shrimp, all competing to find just the right location in the flow of superheated water. Cameron and the mission scientists consider the correlations between life under water and the life we may one day find in outer space.