Watch the Fantastic Mr Fox trailer
Animated films have been big business in recent weeks, with Cloudy With A Chance of Meatballs and now UP selling millions of tickets in the UK.
Both of those films are available in 3D and look really modern, but another animated movie is about to hit cinemas which looks completely the opposite.
It's called Fantastic Mr Fox and is based on a story by Roald Dahl.
It's made in a style of animation called stop-motion and looks like it was created years and years ago.
Animators had to work with models of all the main characters
It's the same technique used for the Wallace and Gromit movies, but looks even more rough and ready than those films.
Even so film critics are still excited about seeing the film, which starts showing in UK cinemas on 23 October.