Now that Tintin is out on the little silver disks, it gets more reviews. And this kind of nails it:
... Clearly motion-capture technology has its place. It worked in the semi-realistic world of Avatar (it helps if most of your characters have cat eyes). It worked to allow Andy Serkis to deliver brilliant performances in both Rise Of The Planet Of The Apes and The Lord Of The Rings (an ape and a Gollum mixed in with live actors and all sorts of other special effects). But when the film is fully animated as in The Polar Express and The Adventures Of Tintin, the weird look of it -- not quite live action, not quite animated -- and the dead eyes of the characters is genuinely ugly. It's like stop-motion animation with none of the charm, animation with none of the freedom and beauty, computer animation with none of the sharpness. It's neither fish nor fowl and it's hard to understand why Steven Spielberg and Peter Jackson couldn't see that. ...
As I've said: If Glen Keane had been supervising the Tangled crew and animated this film -- beat for beat -- it would have been better and far more successful stateside.
Rotoscope from Hell works okay in some live-action/mocap features. Not so much in total mocap, which makes audiences ... uneasy.