Fish: Alright, all secondary characters, come with me.
SpongeBob SquarePants: If we're gonna be on the same team.
Plankton: Maybe I don't wanna be on the te-am! You think of that?
SpongeBob SquarePants: But Plankton everything's best when your part of a team.
Patrick Star: I can't think of a sweeter way to go.
SpongeBob SquarePants: We'll take one secret formula to go. Clear the area, citizens! There's gonna be some serious aft-kicking here.
Mr. Krabs: Without it, there will be a complete breakdown of social order.
Sandy Cheeks: Aw, nuts! I'm out of nuts.
SpongeBob SquarePants: There's the book! Now, it's our turn to rewrite the story.
Squidward Tentacles: You know what this needs? Some interpretive dance.
Answer: The point of a trailer for a movie is to get bums on seats in cinemas so the film-makers have to make a film look really good and generate a "I really have to see this" vibe. Because virtually all professional films shoot far more material than they need, some of it will end up in the trailer as exclusive content and some will end up in the special features section of the DVD (bloopers, deleted scenes etc).
Neil Jones