http://www.imdb.com/title/tt0098663/
Corey and Jimmy Woods are two brothers who are being separated due to their parents divorcing. Jimmy is a mentally unstable kid that has had problems ever since his sister died at a young age. One day, Corey discovers that Jimmy has a natural talent for playing video games. He is one of the best around, and the two journey to the West Coast to compete in a video game championship, but along the way, they must avoid the adults, who are trying to take Jimmy away.
I heard there was a german DVD of this movie, which I loved as a kid because of the glimpses of Super Mario Brothers 3.. I really hope it comes out on DVD one day.