Why do people want game movies? The stories of games are usually the weakest part of the game. If the film uses a totally new adventure... then they may as well have just been a unique movie and not of a game. Game should stay games. We don't need good stories, it's about gameplay. Mario is a great example of this. That game series is still considered one of the all time best with a terrible story. Because it's FUN.
I blame Wii Fit...+!!!