I was fascinated by Jim Carrey's assistant. The movie is going for a "real life" look for the most part. So everyone looked like real people. And then there was Jim Carrey doing Jim Carrey things and with the hair cut and coat looking out of place. And I was watching that and the interplay between the guy Jim was talking to and Jim's assistant, who looked like a normal guy, with that expression on his face saying something like, "This is my boss..."
Sonic looked bad. This blog post
I read yesterday had some good suggestions for a replacement Sonic for the movie. I like number one and two best myself.