Franchise or Series: Some movie titles are related because they belong to the same franchise or series. For example, "Star Wars: A New Hope," "Star Wars: The Empire Strikes Back," and "Star Wars: Return of the Jedi" are all related titles within the "Star Wars" franchise. Sequels/Prequels: Related movies often have titles that indicate they are sequels or prequels to each other. Examples include "The Godfather" and "The Godfather Part II."