Which studio produced Disney's 2013 Cars spin-off film Planes?

Disneytoon Studios produced Disney's 2013 Cars spin-off film Planes.

Planes takes place in the same broad world of talking vehicles but shifts its focus from automobiles to aircraft. The story follows Dusty Crophopper, a crop-dusting plane who dreams of competing in an international air race.

Despite its connection to Cars and its Disney branding, Planes was not produced by Pixar Animation Studios. Disneytoon Studios developed and produced the film, which was directed by Klay Hall and released by Walt Disney Studios Motion Pictures.

Planes was followed by Planes: Fire & Rescue in 2014. The spin-off's connection to Cars is mainly thematic and fictional-world based; it is not a fourth Pixar Cars feature.