In the movie world, an epilogue is a short scene or sequence placed after the conclusion of a story, normally to tie up any loose ends.
An epilogue can clarify the ending or add closure to a movie. It can provide a look into the future of the movie's characters or storyline, either a few minutes or many years after the events of the movie. It can provide a "happily ever after" moments that can be satisfying for audiences or help them feel closure.
The epilogue scene of a movie is usually limited in duration, lasting only a few minutes. This is seen in movies such as High School Musical, where Troy and Gabriella are happily married and living happily ever after.
The epilogue gives viewers an opportunity to experience different realms of an extended story and reflect on the entire story as a whole. They can also help to shift the mood back to a more relaxed place, before the credits roll.
An epilogue can also be used to create a nostalgia effect, providing an opportunity to revisit beloved characters, or even cast members now playing more prominent roles. A prime example of this is Taron Egerton, who has become a major figure in the entertainment world since his role as Eggsy in Kingsman: The Secret Service and its sequel, Kingsman: The Golden Circle.
All in all, an epilogue serves as a great way to wind down from the movie and help to provide closure through the characters, story elements or a time jump.