So far,
The Playlist has given
Fantastic Mr. Fox a B-,
Variety has posted a moderately positive review (discussing its box office potential more than any review should, as is typical of Variety - and especially Todd McCarthy), and
Comingsoon.net gave it an 8 out of 10. Comingsoon.net critics, however, are typically all over the map, never reflecting a critical consensus or any reflection of the film's quality.
Middling reviews are typical of Mr. Anderson's post-
Royal Tenenbaums work (that film earned Mr. Anderson and Owen Wilson respective Academy Award nominations for Best Original Screenplay), so it could still be quite good.
The one thing the critics all agree on is that the film resembles Mr. Anderson's films more than a Roald Dahl book - which, no offense to Mr. Dahl - is the way I'd prefer it.
