As another upconverted movie, I don't recommend seeing it in 3D. Some people are saying that it was pretty good 3D, but others have gotten nauseated. I would go 2D with this one.
Another convention when the studio felt over the top 3D was better. Sometime subtle is better. The depth is exaggerated to an extreme degree, many scenes felt forced and both my wife and I left the theatre with headaches. I would recommend against 3D - even though there is one great 3D moment in the electronics store.