I know it's a kids movie, but the plot is ALL over the place. Trailers made it seem like it would be a story about Shaggy/Scooby-Doo and the rest of gangs, friendship (like an origins story). However, it seemed to me like it was just a way for Hanna-Barbera to cash in on Nostalgia. They threw a bunch of other characters into the movie from out of nowhere and it really seemed out of place.