First, the 3-D. Amazing. There were times when things in the movie seemed to hang over the seat in front of me. Truly amazing.
Second, the IMAX. Resolution was incredible. The difference between 35mm and IMAX is ridiculous Crystal clear. See it in an IMAX theatre.
3rd, the CGI. I've never seen such lifelike CGI, the interaction between live action and CGi was seamless. This is the future of film making.
Last, the movie. The plot was very good, the acting was excellent. You will be pulled in by the human drama. You will feel the joy and the pain. Even without the effects this was a terrific movie, with the effects, it's a revolution.