Sharks endanger a group of people, but none are killed. A shark is shot down and shown landing wounded on the ocean sand.

Numerous unarmed men are shot down by an attacking ship.

A marine craft explodes and two men are killed, one immediately and the other a few seconds later.

There's more than one scene of men in peril on ships and blown off of them into water.

Several lesser words, usually said under duress.

Adults smoke and drink in moderation

When there's not violence, there are several scenes with people in peril and some emotional heaviness.

The main character has a recurring nightmare where a menacing figure watches him in the dark, then he is shown struggling underwater.

A woman nearly drowns underwater and is comatose on the ship, but wakes up later on.

A giant octopus attacks some men and pulls them through water.