allmost of the new games have build in 3d option, u can use shutter or polarized technique. It works great, i have a poli 3D TV, i preffer this to the outdated 3D shutter technology.
With iZ3D or TRIDEF driver you can play allmost all games in 3D.
And one thing about converting 2D movies into 3D, this is a hughe task, it takes ALOT time to get a nice 3D.
I started this year converting 2D Photos into 3D with good results and now i'm into 2D Movies to 3D, this is very time consuming, but the result can be really great, allmost as if you where
back again in the scene. Georg Lucas have the manpower and time and $ to convert it correct, its called 2.5D. James Cameron converting Titanic too, i doubt you will recognize its 2.5D,
i'm sure it will look superb. I'm really happy they converting classics, its such a difference to watch them with depth.