Trivia: The dentist's name, P. Sherman, is a homage to the many Filipino crew members, whose native accent made the English word 'fisherman' sound like P. Sherman.
Trivia: The company that offers work to Lightning McQueen is called Dinoco. Dinoco is the name of the gas station that Andy stops at on his way to Pizza Planet in Toy Story.
Trivia: The two old men near the end, talking about it being "old school" are voiced by Frank Thomas and Ollie Johnston, two Walt Disney animators who worked on such classics as Bambi and Cinderella.
Trivia: The voice behind Roz, the number 1 of the Child Detection Agency and the undercover secretary, is actually a man.
Trivia: A relief carving of Sulley (from the following Pixar film, Monsters University) is visible in the Witch's cottage.
Trivia: The Pizza Planet truck is visible cheering on the right side of the track at the World Grand Prix in Radiator Springs at the end of the movie. (01:37:45)
Trivia: When Carl's house begins to lift and the little girl looks out her window, the Luxo ball from Pixar's other films is seen in her room.
Trivia: Near the beginning, when Remy is in the sewers and begins to make his way up to the skyline of Paris, he is startled by a barking dog in one of the apartments. If you pause and look at the silhouette of the dog, it greatly resembles Dug the dog, from the 2009 Disney/Pixar release Up - another precursory nod to an upcoming movie by Pixar. (00:16:35)
Trivia: Riley is the only character in the movie with both male and female emotions.
Trivia: John Ratzenberger is Earl, an antagonistic velociraptor who is a member of Bubba's gang who tries to eat Spot. John has voiced parts in all Pixar films.
Trivia: When Molt sheds his entire skin from being scared of the ants, the skin is the model that they use before they add the color.
