Although some Easter eggs only last for one minute or just a few dozen, they may be more exciting than the entire movie. They may also be the real ending of the entire movie or leave a deep impression on the audience. The space for influence and imagination, if it is a series of movies, will also be a preview of the next one. As for the extras, many of them are for entertainment purposes and will make the audience feel that the actors are not so out of reach. Music will have an impact on the entire plot. Whether the soundtrack is well matched will give the audience a completely different feeling, and it will also have a certain impact on the understanding of the plot. If the same music as the beginning is played, it will undoubtedly echo the beginning and the end. Many movies are like this now.