This is the first collaboration between Adam Sandler and Jennifer Aniston. The two of them have known each other for twenty years, before either of them became famous. They met through some mutual friends and shared meals together. She also used to watch him perform at the Improv, and she attended his wedding in 2003. He had also tried to get her to join Saturday Night Live (1975) during his time there, but she turned it down to join Friends (1994).
When Danny (Adam Sandler) and Eddie (Nick Swardson) go to the party where Danny meets Palmer (Brooklyn Decker) the house is Nick Swardson's real house.
When Adam Sandler and family go across the bridge, the family that tells them that the bridge is only made for only one person. The two children are Adam Sandler's kids and the "wife" is Adam Sandler's sister-in-law.
Despite the negative critical reception of the film, Nicole Kidman said that she enjoyed being part of the project, mainly because she got to work in her native Hawaii, and because her parents from Australia were able to spend time with her and her children, while she was working.
The negotiation scene between Danny (Adam Sandler) and Maggie (Bailee Madison) is a nod to the negotiation scene in Pretty Woman (1990).
J.D. McFunnigan's main character is the kangaroo from Big Daddy (1999). They also sing the kangaroo song that was featured as Julian's favorite song after naptime.
Dave Matthews' character's name (Ian Maxtone Jones) is a friendly nod to Ian Maxtone-Graham, The Simpsons (1989), Writer and Producer who co-wrote the first version of The Chanukah Song with Adam Sandler.
Second Adam Sandler movie to feature a remix of the song Every Breath You Take by The Police. The other is 50 First Dates (2004).
Along with "Maine Pyar Kyun Kiya", this is a remake of Cactus Flower (1969). "Maine Pyar Kyun Kiya" had it's ending based on the ending of Aniston's show "Friends".
The film's release date was February 11, 2011, which was Jennifer Aniston's 42nd birthday.
When Danny says "There's one problem, she's not you", it's a reference to Friends (1994), when Ross says about Aniston's character Rachel, "There's one problem, she's not Rachel".
J.D. McFunnigans included the animatronic band Rock-afire Explosion from the now closed restaurant chain Showbiz Pizza Place, which was popular in the 1980s.
The movie's title is spoken three times in the course of the film: once by Katherine (Jennifer Aniston) to her chauffeur (Mario Joyner) when he questions her referring to him as "Henderson", once when Maggie (Bailee Madison) is explaining the rules of improv, and again by Katherine when she's asking Danny (Adam Sandler) to pretend to be her husband for Devlin's (Nicole Kidman's) sake.
Jennifer Anistons character calls Adam Sandler, "Big Daddy," referring to the 1999 movie in which he starred.
During the Oceano's hula dance-off, Devlin's (Nicole Kidman's) hula outfit resembles Ariel from The Little Mermaid (1989).
The scene where Danny (Adam Sandler) and Katherine (Jennifer Aniston) pretends to be husband and wife to Devlin (Nicole Kidman) and Ian (Dave Matthews) is similar to Friends (1994), in which Ross and Rachel (Aniston) also pretend to be husband and wife in front of Ross' relatives and make up stories.
The scene when Katherine comes to know that Danny and Palmer are getting married, but she loves him, is similar to Friends (1994), where Rachel (Aniston) becomes upset after knowing that Ross and Emily are getting married, and she still loves him.
Jennifer Aniston refers to the saleswoman in the dress shop as Lori, which is her name in real-life (Lori Heuring).
The subplot involving Danny getting suspicious and jealous (albeit jokingly) over Katherine having a new potential suitor (Brian) only for her to reveal that he was offering her a job that would take her to New York is similar to the final story arc for Ross and Rachel (Aniston) on Friends (1994) where he gets suspicious and jealous when she meets up with an old flame (Mark) only for her to reveal that he was offering her a job that would take her to Paris.
Andy Roddick: The *NSYNC loving tennis pro (with the "I love Justin" necklace) Palmer (Brooklyn Decker) meets on the plane at the end of the movie is her real-life husband.