Ensuring a Happy Ending

Have you ever been halfway through watching a movie, only to have a friend sit down and begin watching the movie with you? The well-meaning interloper will invariably want to understand what is happening in the story, and will often interrupt with questions about situations that had occurred earlier in the film. Unfortunately for you, by the time you’ve gotten the newcomer up to speed, your popcorn is cold and your soda has gone flat.