Audio problem: When Daphne, Mary-Jane, Scooby and Shaggy awake on the beach, they walk off into crowds of people playing and partying. Shaggy then says "Does anyone else think this is strange?" Shaggy's mouth doesn't move at all to this line though. (00:45:30)
Audio problem: In the subtitles, watch when the monsters appear in the lobby, Scooby goes mental and yells out "AAH" or something. It says Shaggy says this, not Scooby.
Answer: In the cartoons, it's AC-712. The film was probably faithful to this.
Tailkinker ★