Well, I'm part of the European demographic that grew up with Tintin (Yes, it's one word).
It's arguably the most popular local comic book in Europe, along with "Asterix" from France and "Mort & Phil" from Spain. But yeah, it never has quite had a big impact in American pop culture and thus, a limited impact in global culture.
Which is a shame, really. Some people accuse Tintin of being a sappy character (Haddock seems to have more admirers, sometimes), but his adventures are very well written and really exciting.
In any case, the film itself is pretty good... but I disagree on Bob's statement that "it keeps the original source spirit".
You see, this film feels more like a Spielberg movie than a Tintin movie.
Bob mentions how many chases there are throughout the film, but the truth is that chases are a very, very small part of Tintin's action sequences. As in they very rarely happen in the comic books, and when they do, they are very short.
Also Spielberg seems to fall again in the over-the-top sequences of his last action movies. And those definetely doesn't feel Tintin at all!
I mean, in this movie there is a fencing duel... with construction cranes!!
How in the world does that fit in Tintin's adventure style?! Also it's the kind of "American" sequences that Europeans mock more often than not.
But as I said, apart from those over the top sequences, the movie is pretty great. Tintin and Haddock's personalities are spot on, and eventhough there is a big chunck from the comic books missing (Proffesor Calculus is missing, eventhough he got his very first appearance in one of the books the movie is based on), the resulting cuts are pretty well chosen and have a pretty good rithm.
I'm curious to see what Jackson will do with the Seven Cristal Balls arc, and hope they will make a third movie. Hopefully with the Moon landing arc, which was pretty great.
And seriously, if you liked the movies and would like to know a world of old fashioned adventures, go a get the comic books. They are worth every penny.