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: Norma Jean and Memphis are named for Marilyn Monroe and Elvis. Elvis is from Memphis, Tennessee and some of Memphis's movements are like his. Norma Jean is Marilyn Monroe's birth name and Norma Jean sings like her.
Trivia: The movie contains a spoof of Saving Private Ryan, where Manny is hit by a geyser and temporarily loses his hearing. Incidentally, the German voice for Manny, Arne Elsholtz, also synchronizes Tom Hanks, who also stars in that movie, which creates an inside joke by happenstance in the German version.
Trivia: In the beginning when Roddy is waking up, a glass Alex the Lion (from "Madagascar") cookie jar is visible on the window sill. When Roddy is looking for something to wear, one of the outfits he holds up is Wallace's sweater vest from "Wallace and Gromit: Curse of the Were-Rabbit".
Trivia: When the "Dragons" are being released around the world, you see a baby carriage nearly falling into one of the cracks that forms in the ground, only to be saved at the last minute. The baby-crying sound effects were actually provided by Selma Blair, who does the voice of Liz Sherman (and also played her in the live action film), after the makers realized she could do a perfect impression of an infant crying.
Trivia: Tiger the cat was originally going to be a tabby, but when the writers found out that the actor providing the voice for him was of the Persian nationality, they made Tiger a Persian.
Trivia: For his role, Kiefer Sutherland had to practice roaring like a lion. Instead of doing it at home with his daughter and step-daughter around, he practiced in his car, unaware of a woman watching him from the next lane.
Trivia: The boat that takes George to America, and again back to Africa, is named the H A Rey. This is a tribute to the author of the Curious George children's books.
Trivia: Some say that Leroy is experiment 628. Some people haven't noticed that in the episode with 627, at the end of the episode, Jumba had said, "Maybe next time will be better" as he places a pod that said 628. So 628 had already been created. He was never shown in the entire series, though Leroy is 629.
Trivia: The Chitauri spiders attacking London resemble the alien machines from War of the Worlds.