Like many, I suspect, I went into this film ready to be dazzled by the cinematography and a rare, nice clean story by Director Martin Scorcese. I wasn't disappointed although I found the story lagging in a few brief spots. Cutting the film another 10 minutes might have solved that. Having said that, though, a month later I'm all ready to view it again!
To me, the most interesting and amazing scenes were not involving the two young main characters and the railroad station, but the ones in the last 30-or-so minutes which dealt with very early films and how they made them. It was incredibly colorful and an education to film buffs everywhere. Anyone who loves movies and appreciates the history of the art should love the last part of this story.
Meanwhile, the bulk of the story still offers many great sights and sounds and I have no quibbles with any of the actors. Youngsters Asa Butterfield ("Hugo") and Cholë Grace Moretz ("Isabelle") were both about 13 when they made this and seem to have good careers ahead of them. I didn't recognize Sacha Baron Cohen as the station inspector. He was great in that role. As for Ben Kingsley, when is he ever bland?
This is one of those "family films" that can be enjoyed just as much - and probably more - by adults. I wish Scorcese would make more of this kind of material.