4.3.2.1 is a British 2010 crime-thriller movie. The movie is about four friends, all 19, during the late 2000s decade. One of them (Shannon) has one bad day after another. She gets mugged, assaulted and rejected. Another, Joanne (or simply Jo, played by Emma Roberts), works inside a 24-hour retail store. The reviews mixed. It was released in June 2010.