The end of a film will have some form of impact on the world in which the film takes place. In many films events will occur that alter the location's physical or emotional composition. The end of the film will often reset the location's mood to its state at the beginning of the movie. For example, at the beginning of the 1985 John Hughes film "The Breakfast Club," five teenagers are stuck in detention on a Saturday morning and begin to become consumed by boredom. As the film progresses, the characters begin to interact and become emotionally open with each other, drawing a few to tears. The emotional composition and mood of the school's library become tense. By the end of the film the characters resolve any problems they have with one another and accept the fact that they are in detention. The library's emotional composition progressed from calm to tense then back to calm.
Throughout a film, as the characters embark on a journey to reach their final goal, questions will often arise. The characters are often faced with a series of conflicts that pose new questions. These questions will often range from a character's flaws to the world in which the film takes place. The characters in the film are always in pursuit of the answer to each question. By the end of a film any questions that are brought up will be answered.
At the end of a film the main characters will often have learned something about themselves or realized a truth. The events in the film will have driven the characters to perform certain tasks based on their own principles. The outcome of these actions will determine whether they were the appropriate choices. This is often referred to as the theme or moral of the film. Many filmmakers will often try to convey a message through the endings of their films. The purpose of these messages is to drive the viewers to reflect on their own lives.
The end of a film can also be used to introduce new plot points. Often at the end of a movie a filmmaker will introduce new plot points by creating dialog that raises new questions, introducing new characters, or introducing a possible new conflict. These aspects are often added to the end of a film in an attempt to raise interest in a possible sequel or draw attention to a series of upcoming related films.