Rarely I do feel so outraged, but this piece of mindless images-in-motion is positively a sacrilege. NOTHING remains of the bright and snappy Humor of Gosciny and Uderzo. The ONLY puns worth a half-smile are the meta-movie ones: Alain Delon mentioning guepards, samurais, Rocco's brothers and the Sicilians' clan, or Schumacher running in the race with a Ferrari battle-car - but even these are obsolete, old-fashioned and excessive. Further, the humor is admirable, sublime we can say, but totally amiss. ALL the gags are forced, painfully slow, grotesquely overdone. The script is an absolute mess - no convincing story-line, no dramatic structure, no sense of rhythm (all these being capital errors when doing a comedy; even more so, for such a difficult and ambitious comedy as Astérix: absurd, fantastic, cunningly warping history, childish in an intelligent way). All in all, as other comments rightly stated, this film-lenght is the worst of all three: definitely slow, much too long, outright boring and worse than amateurish - it's DILETTANTE! If you loved Astérix, avoid it - it will incense you. If you don't know the Gaul hero, avoid it harder - it will unfairly compromise him forever in your eyes. The ONLY Astérix remains the one in the toons and comic books.
