The first trailer for Sonic the Hedgehog 3 has been released, revealing Keanu Reeves as the voice of Shadow the Hedgehog. The movie draws inspiration from Sonic Adventure 2, while also introducing unique elements to the Sonic Cinematic Universe. Fans can also look forward to the return of Jim Carrey as Dr. Robotnik, despite his character's apparent death in the previous film. The trailer hints at Shadow's connection to Gerald Robotnik, setting the stage for an exciting storyline when the movie debuts on December 20th.