The story line is great, the CG is amazing, and I left wanting more; having seen it twice now and each time ending with the audience clapping is a sign to me this is a movie worth passing on to others.
I have seen this now in an IMAX and RealD theaters and must say the IMAX should be the only way you see this movie. Visually both are equal in my eyes but the IMAX has much better sound quality and a larger screen and when combined pull you into the story much more so than the RealD will.