Carib Gold

A shrimping boat off the Florida Keys keeps having its nets destroyed. Owner William Hill is ready to sell his boats, but is persuaded to send it out once more, with a diver to check it out... and discovers a sunken Spanish treasure ship with gold. A crew goes out to salvage it, but one turns out to be greedy and deadly.

It's a great idea for the story, even if the dialogue is pretty bad, and only top-billed Ethel Waters can sell it. She sings the title song, there's some decent water photography, and it's the movie premieres of Cicely Tyson and Geoffrey Holder. That makes it worth seeing.