I watched this over Christmas with the Kids. Well, I say watched – I think I fell asleep half way through; but that might have had more to do with the Christmas Lunch and the Christmas Sherry than the actual quality of the movie. Nevertheless, the children assure it was as least as good as the first one. So make of that what you will.
Buy Night at the Museum 2: Battle of the Smithsonian for only £6.99 from HMV