A trailer has been released for a new sonic the hedgehog film, with jim carrey returning, possibly in multiple roles. However, there is uncertainty about the film's title, with some outlets referring to it as sonic the hedgehog 3 and others as sonic the hedgehog 4. The film is expected to feature the return of jim carrey as dr. robotnik, as well as other cast members, including keanu reeves, who will voice shadow.