Making multiple films together. Normally Hollywood waits until it knows it's got a hit before ordering up a sequel, but that approach has problems. If they're lucky, the original writers will have left {{Sequel Hook}}s, but the seams [[ExpansionPackWorld will still be visible]], and they've got to get the original cast back together.

It's so much simpler to make the sequel before the first film is released. The stories can be written to fit together smoothly, and none of the cast are going to disappear, or demand more money.

Movie multipacks come in three varieties.

''[[TwoPartTrilogy Two sequels for the price of one]].'' Following a hit film with a two-pack of sequels, to complete the trilogy. Examples:
* ''Film/BackToTheFuture''
* ''Film/TheMatrix''
* ''Franchise/PiratesOfTheCaribbean''
* ''Franchise/StarWars''

''One story in N parts.'' When the story is too long to fit in just one part it can be split over several films, all but the last typically ending in a CliffHanger. Examples:
* ''Film/TheThreeMusketeers1973'' (The Richard Lester version; was shot as one film but released as two. Lester got sued by some of the cast, who had only been paid for one film and felt they should have been paid for two.)
* ''Film/KillBill''
* ''Film/{{Superman}}''; written as a 5-hour epic, shot as two movies, though the second was mostly reshot after Richard Donner was fired.
* ''Manga/DeathNote''
* ''Film/TheLordOfTheRings'' and ''Film/TheHobbit''

''String of stories.'' Particularly with [[TheFilmOfTheBook book adaptations]], the story may naturally come as a multi-volume epic. Each individual film has closure, not a cliffhanger, but together they form a greater whole. Examples:
* ''Literature/HarryPotter''
* ''[[Literature/{{Narnia}} The Chronicles of Narnia]]''

All the varieties are often sold as {{Boxed Set}}s.