On a technical point of view, quite good (but that's the minimum expectable from a movie costing more than 100M$), 30 to 45 minutes too long (but this is just to explain you "before" what's going to happen "next" in case you wouldn't be able to understand it), mmm... what else?... Ian McKellen is an excellent actor... and... nothing else, really...
Well... if you don't mind that film makers believe that you have yogurt instead of brain, you'll probably like the movie...
ps : the best moment of the projection was seeing Sofia Coppola's "Marie Antoinette" trailer with Ceremony by New Order, loud, on a big screen... out here next wednesday 