Possible Clues:

• 'The Phantom Menace,' e.g.
• ''Wicked,'' e.g
• Film set before its predecessor
• Film that's out of order?
• 'The Godfather, Part II,' e.g.
• Film starting before the last one?
• Book place, putting in application? No way
• Story preceding another
• What happened before? Question posed during quiet part of film
• "Star Wars Episode I: The Phantom Menace," for one