Fantastic Mr. Fox is a truly beautiful movie. That's the biggest point I want to make in this discussion. The artistry that went into Wes Anderson's first animated film is mind-boggling. It's "claymation" in a nearly perfect form. The best thing about claymation is that every character, set, and minute detail is all handmade. It's one of the last art forms that isn't digital, and in a world of CGI, that is as refreshing as it gets. I've always found irony in the way people, myself included, appreciate the classic techniques of those various art forms. Patrons nowadays think it's so amazing when things are done well not on a computer, and in reality that's the way art was originally intended. Not that digital and graphic art can't be beautiful, or considered art, it's just not the OG way, so to speak.
This is the reason Anderson chose claymation for his form of animation. Like all of Wes' films, this movie had to feel intentional and detailed, and claymation was the best way to achieve that. Every last component, down to the real animal fur used for the animals, is authentic. The things most directors would find mundane or unnecessary to pay attention to, Anderson enhances. All of those elements add up and round out Anderson's vision, just as they do in his other films. They typically aren't things anyone would even notice, but they contribute something none the less.
"Mr. Fox" is considered one of Anderson's most mainstream movies, specifically because it's animated and could be considered a children's movie, although adults are capable of enjoying it as well. Another factor of it's popularity is that it's based on the novel by Roald Dahl, the beloved weirdo. Lastly, Anderson chose some big names for his characters voices, including George Clooney and Meryl Streep. Both were excellent choices, in my opinion, considering their unique and pleasing speaking voices. Wes keeps the film true to his own style though, by adding in his personal details discussed above, which are always my personal favorite parts of his movies. It's the little things, no? That being said, those details are what make his movies beautiful, and Fantastic Mr. Fox is no exception. Thanks for reading, and have a great weekend!