The Deep (1977 film)

The Deep is a 1977 adventure film based on Peter Benchleys novel of the same name. It was directed by Peter Yates, and stars Robert Shaw, Jacqueline Bisset and Nick Nolte.

Treece makes a deal with Cloche, so they can dive in peace making him believe he will get the ampoules for a million dollars, while his real plan is to have the chance to find the treasure. Cloche gives himdays to recover them. Sanders, Berke, and Treece make several dives to the wrecks, recovering thousands of morphine ampoules from Goliath and several additional artifacts from the Spanish wreck. Adam Coffin Eli Wallach, the only survivor from Goliath joins to help in the boat but his loyalty is not very clear when they get attacked by sharks and he only says that he probably fell asleep without noticing they were in trouble.Through research in Treeces library, they reconstruct the history of the lost treasure ship, locate a list of valuable items, including a metallic jar with the letters EF engraved on it, and learn the identity of the noblewoman Elizabeth Farnese for whom they were made by the king of Spain. Sanders is determined to locate at least one item on the list to establish provenance since without it there is no value to the treasure. Treece wishes to destroy the Goliath to put the morphine out of reach of Cloche and Cloche interferes with their efforts so that he can recover the morphine for himself. During a running series of conflicts Treeces friend Kevin Robert Tessier is murdered by one of Cloches henchmen and Adam betrays them and is killed when he triggers a boobytrap while trying to steal the recovered morphine. A climactic battle during the final dive ensues, with Cloche and his divers being killed in the destruction of the Goliath and the recovery of a gold dragon necklace that will provide the needed provenance of the treasure. ........

Source: Wikipedia