Other mistake: When the gang are watching the news report in their van, Heather Jasper-Howe shows the clip of Fred saying "I think Coolsville sucks" - problem is that there was not enough time for the crew to edit Fred's short interview and be able to transmit it that quick. (00:37:00)
Scooby-Doo 2: Monsters Unleashed (2004)
1 other mistake
Directed by: Raja Gosnell
Starring: Matthew Lillard, Seth Green, Sarah Michelle Gellar, Linda Cardellini, Freddie Prinze Jr.
Continuity mistake: When Shaggy and Scooby find the "Faux Ghost" ticket, they pick it up and examine it carefully. The Black Knight came and they ran away, dropping the ticket and never picking it up. But when they are back in the Mystery, Inc. headquarters, they have the ticket. (00:22:15)
More quotes from Scooby-Doo 2: Monsters Unleashed
Trivia: When Scooby and Shaggy are at a club, Shaggy talks to Mr. Wickles. He says something about Scooby's nose. The man who is sitting next to Scooby is Neil Fanning, the man who does the voice of Scooby-Doo.
Question: Was there ever a real Heather Jasper Howe?
Answer: Yes.
Answer: Yes! There was a real Heather Jasper Howe! Like the fake Heather Jasper Howe's True Identity is Jonathan Jacobo! He was arrested with Ned.
No, there is no real Heather Jasper Howe. The movie never shows that.