Dead Calm is one of those rare thrillers with good acting, suspense and great setting. The ocean setting really makes this film, as well as the 2 boats. Kidman is a realistic and resourceful character and because the film had only 3 main characters throughout the whole movie, you go through the same emotions the actors do in the film. The ending seemed tacked on, but because the whole film is so good, the ending doesn't hurt nor help the film. Well paced, acted and overall great movie. 9/10