Warner Bros. released the first official trailer for Scoob!, the lighthearted animated update Scooby-Doo, Where Are You?, the classic kids show that ran from 1969 to 1970. This fun, modern movie update features the talents of Will Forte as Shaggy, Zac Efron as Fred, Amanda Seyfried as Daphne, Gina Rodriguez as Velma, and longtime Scooby-Doo voice Frank Welker. [caption id="attachment_847800" align="alignright" width="360"] Image via Warner Bros.[/caption] This first teaser trailer for Scoob! goes heavy on the feels between forever friends Shaggy and Scooby-Doo. Unlike previous big screen adaptations of the Scooby-Doo world, …