Trivia: Juliette Lewis appears in this film, playing the same character from the comedy Old School, Heidi.
Trivia: The Marni family's home in this movie is the same house Jamie Lee Curtis resided in in the 2003 movie Freaky Friday.
Trivia: Celia Weston plays Tom Cruise's mother in the movie, even though in real life she's only 10 years older than him.
Trivia: When a pine cone falls out of a tree and hits Yogi in the eye, a "Wilhelm scream" can be heard.
Trivia: When the orange dragon scorches the purple dragon to bones on the video game that Greg and Rowley are playing, you can hear the Wilhelm scream.
Trivia: Of all people, famed director Christopher Nolan (The Dark Knight Trilogy, Inception, etc.) is reportedly a huge fan of the character and this film, and would constantly quote jokes from it on the set of "The Dark Knight Rises." He almost attended the cast table-read for the 2021 sequel series on streaming service Peacock, but was unable to. He sent the director an e-mail to read before the table reading, jokingly saying that the world was "watching" and "waiting" for more MacGruber.
Trivia: When the goalie is scared away by Billy Crystal during the end credits, he yells the Wilhelm scream.
Trivia: The scene when Ramona delivers the package to Scott and he signs for it, he takes the package and throws it over his shoulder into the trash can, some several feet behind him. In the outtakes reel, they show that no special effects were used. Michael Cera made the shot over his shoulder on his 33rd attempt.
Trivia: At the beginning of the movie, Olive wonders why her life can't be more like an '80s movie, including Sixteen Candles. In the car with Todd, when they're - SPOILER ALERT! - talking about kissing each other, the song playing in the car is a rendition of "If You Were Here," the song playing near a similarly romantic scene in Sixteen Candles.
Trivia: Originally, Dustin Hoffman turned down the film due to his dissatisfaction with the screenplay. Hence him being in Spain learning the Flamenco. Poor test screenings lead to him changing his mind and being inserted into the film via costly reshoots.
Trivia: In the film, Amanda Peet plays Darcy Silverman. Peet also starred in the movie "Saving Silverman" as Judith who was engaged to the character Darren Silverman. Jack Black (Gulliver) also starred in "Saving Silverman"
Trivia: Christopher Plummer won the Best Supporting Actor Academy Award for his role as Hal Fields. At the age of 82, Plummer became the oldest winner in Oscar history.
Trivia: Originally intended to be a sequel to "Beverly Hills Ninja," and was written and co-directed by one of the writers of that film, but was eventually retooled into a stand-alone film. There are still some minor similarities and similar bits of dialogue, however.