Saw A Christmas Carol in 3D this evening and can highly recommend it. Visually stunning and imaginative the Real3D system, which I understand uses opposing circularly polarised lenses so that you don't lose the effect by tilting your head works really well.
The film is very dark in mood and some of the scenes are pretty scary. 3D is used to good effect and there isn't the silly stuff seen in the past that made me go cross-eyed.
The motion capture to animation technique is marvellous and it's great to see that actors will still be required in the new world after all. Jim Carey's range of expression is wonderful.
Thanks Margaret and David for the recommendation.
The short for Tim Burton's Alice in Wonderland, also in 3D looks fantastic too.