Here's what I think. You're an amazing learner, and being able to learn by site is something not everybody does well. However, and I'm not saing it's wrong, but learning by DVD/movie is a cheap way to get ahead of your class. Right now you're at the point where you can't wait to learn more. So here's what I would do. I'm not sure what the emahisis is on in your Dojo, but watch your Sensei. Make your stances and techniques as simular to Sensei as possible. Then, do that and be the first to the position in the kata before the class, but still on count. The trick right now is to create games during kata to keep you focus on something, even if you alraedy know it.