Trivia: The "Montage" song is actually from an episode of South Park (Parker and Stone's TV show) called "Asspen," where Stan learns how to ski in a similar montage style.
Trivia: There is a little reference to the novel One Hundred Years of Solitude by Gabriel Garcia Marquez. Ben, the robot, upon meeting Jimmy says something like "Solitude is great, but 100 years of it..."
Trivia: The Iron Giant has only 53 words of dialogue in the entire film.
Trivia: 1 tells 9 that he led the others to their current hideout, which he refers to as "sanctuary". The building happens to be Notre Dame church, famously referred to "sanctuary" in "The Hunchback of Notre Dame."
Trivia: Riley is the only character in the movie with both male and female emotions.
Trivia: A popular film poster shows Emily and Victor reaching their hands toward one another. Emily's bony hand is on her right and Victor's suit and vest are backwards (note its buttons). Some say it was for legal reasons - Johnny Depp's name was supposed to appear on the poster first because of a contract, and they wanted the characters underneath the corresponding star names, hence the issue. Others say it was simply because the picture looked better with the bride on the right side.
Trivia: According to Disney there were 6,469,952 spots painted on the dogs.
Trivia: In the closeups of Goob on the baseball field, there are two billboard advertisements on the fence behind him - one is "Jungle Book" featuring Mowgli with Baloo, and the other is "Toy Story 2" featuring Woody, Jessie, and Bullseye.
Trivia: When Nancy Tremaine (Idina Menzel) is singing to Morgan about her memories to make the tree come to life again she sings a line "Let it glow, let it glow." This is an homage to Idina Menzel as Elsa in Frozen singing "Let it Go".
Trivia: When Doc Terminus is tied to the harpoon shot from the cannon and goes through the building roof, you can hear a "Goofy Holler."
Trivia: When Ralph and Venellope arrive in the internet they are bombarded with pop up ads. One of those ads features a picture of a woman with short brown hair. That woman is Aunt Cass from the Disney animated film, "Big Hero 6." In addition, Baymax from that movie makes a cameo appearance at, "Oh My Disney!"
Trivia: The movie came about partially thanks to the "Super Nintendo World" theme parks. As the Nintendo World parks were to be situated in Universal Studios theme parks, Mario creator Shigeru Miyamoto met many Universal executives, including Illumination CEO Chris Meledandri, to discuss the park's creation. Miyamoto felt Meledandri was a kindred spirit due to their similar creative processes and began talking with him about making a new Mario movie. Within a few years, the project was greenlit.
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: Reportedly, Disney chairman Jeffrey Katzenberg repeatedly tried to sabotage the film's production as he was worried it would overshadow their film "Aladdin," especially as both films featured Robin Williams as a prominent character. Williams was furious, as he felt the film's environmental message was important and that there was no reason he couldn't do both films. It's believed this may have been a factor in William's feud with Disney that lasted several years after "Aladdin" was released.
Trivia: There is a short scene after the credits.
Trivia: When Barley and Ian are paying their toll at the "troll bridge", look on the right hand side and you can see the Pizza Planet Truck.