Underwater!

The scuba diver partners Dominic Quesada (Gilbert Roland) and Johnny Gray (Richard Egan) are treasure hunters that are seeking for sunken treasures in the Caribean waters. When they find evidences of the Seventeenth Century galleon Santo Bello in the bottom of the sea, they raise money and an adequate boat and they sail to the spot with Johnny's wife Theresa Gray (Jane Russell), the boat's owner Gloria (Lori Nelson) and Father Cannon (Robert Keith), who is an archaeologist, to recover the treasure.

They find the galleon located in a dangerous location on the edge of a cliff and they use a winch to try to hold it in position. Meanwhile they feel threatened by greedy shark hunters but they leave them in an island. When Theresa is trapped in the debris of the sunken vessel, Johnny and Dominic have difficulties to rescue her. But when they return to they vessel, they have a surprise.

"Underwater!" is a naive popcorn movie with a great adventure of treasure hunters. The attractions of this film are basically the underwater filming and Jane Russell, but it is entertaining in a rainy afternoon on DVD. My vote is six.

Title (Brazil): "Alforje do Diabo" ("The Devil's Saddlebag")