Credits

The credits for a movie consist of the writer of the movie, the director, the producer, the cinematographers, the editors, the important cast, the less important cast (A.K.A. the extras), and lastly, any source where music involved in the movie was found. Some movies have the credits in the beginning of the movie, such as in the movie "Alien" (1979)( https://www.youtube.com/watch?v=6jJRvZ72fLs ) and "Godzilla" (2014)( https://www.youtube.com/watch?v=NBQJjqnG1iI#action=share .)

In the 1920's, producers went from having no credits, simply the title of the show/movie, to having opening credits including the main cast and the major technical helpers. This did not allow the rest of the actors/crew to get more jobs in another productions because it was not known they were in the movie/show in the first place. In the 60's, audiences began to see longer credits, at the end of the screening, including everyone who helped in producing the film/show. One of the first movies with closing credits was Saul-Bass' "West Side Story" (1961), which includes the names of the actors/crew in graffiti on street walls and signs.
With the evolution of technology, credits have been getting longer, some movies with over 2,000 names in their credits. Action movies such as Iron Man include even more names, "Iron Man 3" with over 3,700 names, since they have to also include special effects companies and people who helped with the special effects. Some movie companies/producers make their closing credits creatively, with animations or mise-en-scene that is iconic to the movie. "Guardians of the Galaxies Vol. 2," "A Bug's Life," "Wall-E," and "Big Hero 6" animated and toyed with their closing credits so the audience would not get so bored during them. Marvel is also popular for their post-credits scenes, which most people stay for once all the credits are done.

In my movie, the writer, director, producer and editor are me, as well as Andrea, the main character. My friend Ayshe Can helped me record the scenes, being the cinematographer, while her sister, Aleyna Can was acting as Albany, the bully. My sister, Antonella Criscola, was Maria Victoria, Andrea's mother's voice, as well as an extra walking her dog as Andrea gets bullied by Albany.

Source: ↘
https://www.nytimes.com/2017/05/26/movies/why-end-credits-in-movies-are-so-long.html