Trivia: A few moments after Susan rides the moped over the ramp, the American tourist who asks Susan, "Excuse me, do you know if there's a Popeye's Chicken around here?" is Melissa McCarthy's husband, Ben Falcone.
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: Riley is the only character in the movie with both male and female emotions.
Trivia: The head of Hasbro's door has his name displayed as "T. Jessup", a reference to Family Guy writer Ted Jessup.
Trivia: Most of the names on the check-out card in the book are actual fictional characters or real people, most being pirates. There's Davey Jones, Bluebeard, Blackbeard, Captain Kidd, and Frank Beard. Frank Beard is a member of ZZ Top and incidentally the only member without a beard. (00:03:35)
Trivia: Although they play mother and daughter in this film, Cecily Strong is only eleven years older than Hayley Lu Richardson.
Trivia: The hotel manager is played by Robert De Niro's real-life daughter, Drena.
Trivia: The hair style Dracula gives Dennis is similar to Al Lewis' hair style when he played Count Dracula on "The Munsters."
Trivia: At the very end of the movie when Jorge Garcia says "I don't have a good feeling about this", it is in reference to his TV series "Lost" where he is in a plane crash.
Trivia: The teacher who greets Mr. Stine at the end of the film is played by the real-life R.L. Stine in a cameo. Furthermore, his character's name is "Mr. Black," a reference to Jack Black, who plays R.L. Stine in the film.
Trivia: Nick Park, the film's executive producer, has a cameo as the man photographing the birds at the pond.
Trivia: Steffiana de la Cruz, who plays Kira, is Kevin James's wife in real life. She was also in Paul Blart 1 as a mall patron.
Trivia: This was the first "Peanuts" film since the death of its creator, Charles M. Schulz, in 2000.
Trivia: M. Night Shyamalan personally financed the film so that he could have complete creative control over the final product. He wanted to make a low-budget, back-to-basics movie, as he had just finished working on a string of high-budget critical and commercial failures (including "After Earth" and "The Last Airbender") where he had little creative control due to the budgets and studio-mandates. It paid off, as this film, his next film "Split" and his television series "Wayward Pines" were generally considered a "return to form" for Shyamalan by critics.
Trivia: Although Emma Thompson plays Robert Carlyle's mother, she is only two years older than Carlyle in real life.
Trivia: The driver of the blue van who hits Simon Pegg on his bicycle is the film's director, Terry Jones.
Trivia: Futurama's "Anthology of Interest II" episode contained a segment called "Raiders of the Lost Arcade" where Fry asks what would happen if life was more like a video game. In the segment, video games come to life and attack Earth, and it's up to Fry to save the day because of his video game playing skills. Billy West, who voices Fry, later performed voices in "Pixels", which was based on this premise.