The film makers of the prior movies have mentioned playing both "Sonic Adventure 2" and the "Shadow The Hedgehog" solo game for inspiration. The film also has elements from the 1993 television series "The Adventures Of Sonic the Hedgehog" like Scratch and Grounder.
This is the first film trilogy that Jim Carrey has ever been apart of. He has been famously known for turning down sequels, despite large sums of money offered to him. He has stated that Dr. Robotnik/Eggman is a character he loves playing.
Will feature the iconic main theme for Sonic Adventure 2, "Live and Learn."
The first film of the series to be release in IMAX worldwide.
Speed (1994), a movie that Shadow's voice actor Keanu Reeves had been referenced in the first film where it was playing on a tv screen, even as far as Reeves himself being mentioned.