In a scene taking place in the autumn of 1959, two characters mention they would like to see the new Ingmar Bergman film, "The Virgin Spring". In fact, that film would not be released until February the following year.
In a scene taking place in the autumn of 1959, a character listens to the song "Puff the Magic Dragon" by Peter, Paul and Mary. In fact, that song would not be released until 1963.
In a scene taking place in the autumn of 1959, three characters listen to the song "I'm Sorry" by Brenda Lee. That song would not be released until July the following year.