Simmons tells IGN: "We do very very few cross-branding things. We're very careful about who we associate with. Scooby-Doo is iconic so for us it was a no-brainer. When Warner Brothers came to us and said, 'How would you like to do a crazy-wacky thing?' It was like, 'Crazy-wacky is our middle name. What it is?'"

He adds that the movie pays homage to graphic novel culture and says of the plot: "It's a story that meanders left and right. When you think you've got it figured out, the portals of space and time open up and you're off into the deep wonderland of it all."

It starts off with a trademark Scooby-Doo scene: "There's a theme park, and we're invited to okay the Kiss World. It's haunted, there's a witch and spells," says Simmons.