I saw this last weekend. It was in 3-D. This surprised me. It was pretty fun. The opening sequence (credits, music etc) was really cool. I think they did a nice job with the animated people. The story line was exciting. I liked Haddock the sea captain - easily my favorite character. Though the Scotland yard detectives Thompson and Thomson were pretty funny. Tintin himself is kind of 'meh' but I thought that about him in the comics too. The dog's not cute.
There was a fight scene that involved cranes (not the birds) on the docks that was exciting. I don't know if I've ever seen a crane battle before.
All in all, it was worth the thirteen bucks.