Don't you mean "3D movies that are currently only available in 2D"?
Interesting idea. But won't this require someone with a VHD player from Japan and the 3D titles to go with it?
http://home.q03.itscom.net/nsa/vhd.htm
I'd like to see "Comin' at ya!" and "Starchaser the Legend of Orin" in 3D myself.