It was good. Not stupendous, but not bad by any means. Wasn't very faithful to the book, though. The ending was the greatest deviation--and the worst. Seriously, I don't even know how they're going to set up the sequel (if they have it at all).
Paul Bettany was by far the best performance. He was an amazing Dustfinger.
I'd say that the worst performance was Jamie Foreman as Basta.
Brendan Fraser's performance was okay, but Sienna Guillory was better.