Also 'Romeo and Juliet' (tragedy occurs because a message isn't delivered), 'Assault on Precinct 13' (gang cuts the phoneline to a besieged police station) and

Also 'Romeo and Juliet' (tragedy occurs because a message isn't delivered), 'Assault on Precinct 13' (gang cuts the phoneline to a besieged police station) and the opening credits of Terry and June (couple can't find each other in a shopping centre)