Parents need to know that this movie isn't for kids. Although it has been called a modern day Jaws, it isn't a shark movie at all -- the sharks are merely background characters here. This low-budget, dialogue-heavy indie is really about the complex relationship between a married couple, and it will bore teens who are expecting a fast-moving horror movie with high-tech special effects and lots of gore. There are scenes of intense peril that may be too much for sensitive kids. There are shark attacks and we see blood, but the extreme danger the characters face is worse than any actual violence we see. There is a scene in which the couple talks about having sex (we see the woman naked), but they decide not to go through with it. There's a lot of strong language (which isn't too surprising given the couple's dire circumstances). The ending may shock and upset some viewers.

Families can talk about the various reactions the couple have as they begin to understand how serious the situation is. Is it natural to assign blame at a time like this? How do the underlying problems in their marriage manifest when they find themselves stranded?