Survival Island

Survival Island, also known as Three, is a 2005 erotic thriller film written and directed by Stewart Raffill. It stars Billy Zane, Kelly Brook, and Juan Pablo Di Pace.

Washing up on a deserted island, Jennifer is completely alone until she sees the body of the captain in the water. As she attempts to resuscitate him, Manuel appears and also unsuccessfully tries to revive the man. They bury the captain and, under Manuels guidance, set out to build a shelter and find food. Eventually, Jack also turns up on the island. Although things go smoothly for a little while, Jack eventually suspects Manuel of having desires on his wife and declares the man his enemy, promising to ruin his life once they get off the island. Manuel responds that Jack had better get home soon, because he can ruin Jacks life right there on the island. This puts Jennifer in the uncomfortable position of her loyalty to Jack conflicting with the realization that they both need Manuels help to survive. A proud man, Jack insists that he can provide for them both, but it quickly becomes apparent that he cannot. Jack and Jennifers relationship also starts quickly deteriorating.Jack steals Manuels goggles to go fishing one day and when Manuel discovers this, he threatens to kill Jack. Jennifer attempts to get him to calm down and, in a fit of passion, they have sex. Afterwards, Manuel reveals that he has loved Jennifer from the moment he first saw her, but it is also clear that this is a way for him to hurt Jack. When Jack returns, Jennifer accidentally hints at him what had happened and Jack furiously rejects her. He breaks up with her and drags her by the hair to Manuels hut so she can live with him. ........

Source: Wikipedia