She Gods of Shark Reef

I was given the Classic Features: 50 Movies Sci-Fi for Father's Day and The following are the reviews from films included in the collection.

She Gods of Shark Reef was very proud to have been filmed in Hawaii. An escaped prisoner and his brother become shipwrecked on an island filled with women. These women pearl dive and then sell the gems to passerby sailors.

One girl is selected to be sacrificed to the shark gods. Because she happens to be the girl whom the brother loves, a rescue attempt is a must.

Here's a clip from the film, you can watch the entire film on youtube.