If there was one thing Alfred Hitchcock liked, it was having a small stage (Rope, Dial M for Murder, Rear Window). For Lifeboat, that stage was the particularly cramped titular escape vessel. It all starts off genially enough, but needless to say tempers wear thin when there are limited rations and even more limited chance of rescue. If there was another thing Hitchcock liked, it was a twist. But we wouldn’t like to spoil the ending.