Reposting an older review.
This is a fairly light flick. Light on story and complexity that is. It’s really a treasure hunting film with a couple of land and sea monsters thrown in to add to the thrill. There are some rather violent scenes that seem harsh and a bit out of place in an otherwise fun adventure film but they don’t detract from the overall exciting feel of the movie. The roles in this aren’t too complex and there’s a lot for Robert Shaw to fall back on from his previous role in Jaws. He plays a treasure-diving veteran that gets involved in a dive with a young couple that ends up concerning some local drug thugs. There’s a bit of the old sea captain feel of Quint’s character in Jaws in Shaw’s portrayal of Romer Treece and it shouldn’t be surprising seeing as this film was based on a novel written by Peter Benchley who penned the novel Jaws is adapted from. He gets to boss around the young apprentice, spout old sailor wisdom about lost ships and there’s even a close encounter with some hungry sharks. Shaw stars alongside a young Nick Nolte and perhaps the main reason most men went to see this film, the beautiful Jacqueline Bisset. It’s not a perfect film but it’s entertaining and that’s all you can really ask of it. It’s a good summer flick to get you out of the heat and into a nice air conditioned room.