Watch Your Stern is a 1960 British comedy film directed by Gerald Thomas and starring Kenneth Connor, Eric Barker and Leslie Phillips. The film was based on the play Something About a Sailor by Earle Couttie. The Royal Navy provided cooperation, allowing the producers to film in Chatham Dockyard, and aboard HMS Jaguar and HMS Chaplet. The film shares its cast and production team with the Carry On films, but is not an official member of the Carry On series. It also has similarities to the long-running BBC radio series The Navy Lark.