Sonic the Hedgehog 4 (live action) should be about the new bad guy planning to attack some big celebrity event or award show or something with the biggest celebrities
Sonic, Tails, Knuckles, Amy, and Shadow (whom they may or may not have kidnapped and basically gave him no choice but to be their friend) are getting pre-fight dinner at some pizza place a few blocks down from the celebrity event, debating how to sneak in
And some guy in a trench coat and fedora in the next booth is like "I might be able to help you" and he takes off his fedora
Not as a character, just as himself. And y'know in the first movie Sonic expressed absolute adoration for mr reeves while Tom and Maddie were watching Speed, so our favorite blue hedgehog is freaking out
So reeves conspires with some female celebrities like Ariana Grande and Taylor Swift like "hey can you guys smuggle these fluffy alien kids into the event under your conveniently poofy ball gowns"
And then Knuckles sees Dwayne "The Rock" Johnson and boldly marches up to him like "ah, a fellow warrior! I have witnessed your victories in battle upon the moving picture box known as the 'teevee'!"
And Johnson is faced with the question of "what to do when a talking fluffy alien 16 year old space anteater praises your wrestling?" but before he can answer, Knuckles follows up with
"is it true, Man of Stone, that you were once a real rock, but were such a great rock that a divine power turned you from a rock to a person?"
And with a perfectly straight face Johnson is like "yes, that's exactly what happened."
And then after all the action it cuts to Sonic and friends chilling in that pizza place with Reeves, Johnson, and whichever female celebrities smuggled them in under their dresses. Knuckles is arm-wrestling Johnson in the background.
And then just because Reasons they're approached by another celebrity like Ryan Reynolds who completely seriously asks for Sonic's autograph and gets him to sign his own GUN wanted poster or something