Do you have any particular Nintendo IPs which would translate well into film?
For me it would be:
Ice Climbers with Pixar. Some strange reason there's something very cute, funny and endearing about a film involving two inuit siblings having an adventure to get to the top of a mountain. A perfect Pixar movie.
The Legend of Zelda with Dreamworks. After watching How to Train your Dragon I got my faith back in Dreamworks to do something great with a Nintendo IP. And I think they could really produce a great PG Legend of Zelda film under guidance of Miyamoto and Aonuma.
Metroid - Legendary Pictures. I'd love to see a live action Metroid film. Something aimed more at the PG-13 audience, a little more adult but still within the confines for younger people, and I think it would be a good videogame adaptation to do in live action
Honorary mention: Super Mario Bros: The TV show. Something aimed at younger children, 20 minute episodes that are educational and entertaining for children and adults to watch. Maybe a Disney Channel experience. I don't think Mario translates well to an hour and a half long adventure for 5 year olds.