Ever wonder how Shaggy met Scooby Doo? And how did Scooby get his name? Those questions and more are answered in the new Warner Brothers movie "Scoob!" that will be released on May 15, 2020. The first trailer for the movie was posted on YouTube this week, and shows Shaggy and Scooby's first encounter. Shaggy introduces his new canine pal to his friends Fred, Daphne and Velma, and of course there's a mystery to solve!