I'm global, which means they can schedule me anywhere they like! I've yet to work MGM though.
As for the audition process, it's a combination of dance and animation. First, they teach you a series of dance steps. After they've given you a chance to master that, they tell you what your animation will be- some sorta action. You might be asked to act out going to a rodeo, making an ice cream sundae, building a sandcastle, taking a tour through the park, etc. Then they play the music and you animate for so many counts, then do the dance, then animate again. It's quite a workout!