...it's about the whole Video Games medium, and not a licensed movie? Cool!
...it's about an 8-bit era character experiencing the modern-day game industry? Great! And the fact that the modern-day games are represented by a first-person-shooter is further evidence that someone's doing some homework.
Though technically, former The Simpsons and Futurama director Rich Moore, himself a nerd, is the real director and also one of the three co-writers. Jim Reardon, a fellow former Simpsons director and one of the three writers of WALL•E, co-wrote this as well.
That isn't even the tip of the iceberg. According to fan-site The Sonic Stadium, he'll be showing up several times. *fangasm*
And then came the first trailer. Disney's been Genre Savvy enough to include the One-Scene Wonder that the Villain Support Group is quickly building up to be. To quote a Youtube commenternote from another uploaded version of the same trailer, "I GEEKED OUT COMPLETELY AT THE VILLAINS SCENE". If the movie wasn't hyped enough already, the physical faithfulness of Bowser's and Eggman's portrayals in the movie was more than enough to make said hype skyrocket. Disney isn't messing around with this movie.