The Scooby-Doo cinematic universe, as some have declared it, has a new chapter. SCOOB!, the animated film, is expected May 15, 2020. It tells the story of how Scooby and Shaggy met for the first time and started fighting crime together. It features stars' voices like Zac Efron, Mark Wahlburg, Amanada Seyfried, and more. Check out the adorable trailer here!