Scooby-Doo is an iconic character, but his film franchise apparently needs to go back to the drawing board.  According to Deadline, Warner Bros. is ready to reboot Scooby-Doo.  The 2002 live-action/CGI picture grossed $275 million worldwide starred Matthew Lillard, Freddie Prinze Jr., Sarah Michelle Gellar, and Linda Cardellini as Shaggy, Fred, Daphne, and Velma, respectively with Neil Fanning providing the voice of Scooby-Doo.  The sequel, Scooby-Doo 2: Monsters Unleashed only grossed $181 million.

So does Scooby-Doo just need a hiatus and a new cast to be a hit again?  Deadline says they're starting from scratch and "setting Randall Green to craft a new adventure."  Spoiler: It was the old man who ran the amusement park.