We saw Hugo in 3D last night -- which I would highly recommend. My daughter read the book a couple of years ago and loved it. I have to say that this book made into a movie didn't disappoint us. The visual effects are first rate -- everything is muted in color and very easy to see and take in. The details are amazing. You can see why Martin Scorsese is a master at movie making. Hugo is a beautiful story that takes you on a journey into how our lives are affected by others. Hugo is not a fast paced movie, but that works for this story. The movie could have been shortened a little bit -- 2.5 hrs. is long -- but most of the "extra time" was taken up by visual shots -- well worth the extra time.
I would recommend this movie for older children -- above 10 -- because of the length/pace and storyline. It's a must see for the holiday season.