i saw it twice the first weekend - both in 3

... and agree with all that its well worth it. funny thing - its the first time I've ever had 'assigned seats' in a theater before...
what I will say is that I felt some of the story line was sped up to keep it under 3 hours... personally, I would have made it into a two-part movie or even a trilogy - it had that kind of potential - but I surely can understand why they did not do that as they wanted a wider audience. but like others said, what it lacked in depth, it made up in breadth and in visuals... absolutely see it 3

or IMAX 3

if you can... its well worth the extra $1.