Eh? Go Wing Commander movie meh?? Since when? I really no idea on that.

Frankly, most games=>movies sucks big time.

But below are the possibilty of a great movie:

Ninja Gaiden!!! (this if can rope in martial arts master like Yuen Wo Ping to do the stunt direction, can turn into a mega action blockbuster!)
Omnimusha ( Get Takeshi Kaneshiro and that french dude to star in it!! More authenticity!!)
Jade Empire ( Unique settings and costume )
Fatal Frame Series (but we've already too many Japanese ghost movies like this)
Grim Fandango ( as suggested by Naviink, this game has excellent story and humour. Lucas should really turn this into a movie since he already has a Lucasfilm division).

No bouncing boobs and pretty girls??? Why bother with DOA movie then!!!