Dwayne Johnson, Jack Black, and more return in the Jumanji: Open World trailerSony Pictures unveiled the debut trailer for Jumanji: Open World on Tuesday. Dwayne Johnson, Jack Black, Kevin Hart and Karen Gillan return as the franchise’s beloved video game avatars. They’re video game characters, but they’re stuck in demo mode,” he states. That installment followed a group of teenagers who become trapped inside a video game as adult avatars. The trio also announced the Open World title during that same appearance.