The movie was directed by Steven Spielberg and the story, based on the long-running Belgian comic strip by Hergé, is an over-the-top semi-slapstick action epic, very similar in style to his Indiana Jones movies.
The hero Tintin (Jamie Bell) is a daring young reporter who is always accompanied by his dog Snowy, an amazingly intelligent animal who often seems impatient at how slow his master is to see the point. Tintin regularly solves mysteries and unmasks criminals. His latest case starts when he buys a model ship which is promptly stolen by a shady character named Sakharine (Daniel Craig). The key to the mystery seems to involve the drunken Captain Haddock (Andy Serkis) whose family once owned the model ship.
I have long suspected that computer-generated animation would soon be able to cross the Uncanny Valley and produce realistic depictions of humans. The question is “why bother?” This could have been made as a live-action movie using prostheses for the big noses and CG animation for the action sequences. This is how most action movies are made today. Steven Spielberg in particular does it all the time. It would probably have felt more dramatically intense. (It would probably also have been cheaper, since motion-capture animation is pretty expensive.)
Apparently that is how Spielberg originally planned to do it, but Producer Peter Jackson (whose company Weta Digital handled the animation) convinced him to make it a completely animated feature.
I can see one clear advantage to doing it this way. If this movie were live-action it would certainly be rated PG-13 instead of PG, limiting its potential audience. I don’t think there’s anything here that would really harm a child but it is much too violent to be considered a suitable children’s picture by contemporary American standards. The animation adds a slight tinge of unreality, making it seem less threatening to adults (though probably not to children.) Parents should be aware that there is some blood, at least one character is killed, and the hero caries a gun and is not afraid to use it.
If that is not a problem for you then you will probably find this a thoroughly entertaining movie.