Saw it in Chicago last night. The theater was about 3/4 full. It was a 'normal' multi-plex theater, so I would say there were about 150-200 people there. Two rows were set aside for 'VIPs', but only a handful showed up.
The movie was okay. Not great, not bad.
The CGI is definitely cutting edge. Given the rate technology advances this is what computer games will probably look like in less then ten years.
The story is the typical 'epic' where a handful of individuals, who despite the odds, save the world through their own sacrifices. Now real suprises, and you 15 minutes into the film you can guess how it will end, give or take a couple of details.