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, although she is Australian, she got to work in her birthplace of Hawaii, which she left when she was 4 and because her parents from Australia were able to spend time with her and her children, while she was working.

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).

The film's release date was February 11, 2011, which was Jennifer Aniston's 42nd birthday.

Along with Maine Pyaar Kyun Kiya (2005), this is a remake of Cactus Flower (1969).

The negotiation scene between Danny (Adam Sandler) and Maggie (Bailee Madison) is a nod to the negotiation scene in Pretty Woman (1990).

Third Adam Sandler film to feature Hawaii the first being Punch Drunk Love (2002)

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.

Filmed at Hilton's Waldorf Astoria, Grand Wailea in Wailea, Maui.

Jennifer Anistons character calls Adam Sandler, "Big Daddy," referring to the 1999 movie in which he starred.

Shipped to theaters under the code name "Grounded Out".

During the Oceano's hula dance-off, Devlin's (Nicole Kidman's) hula outfit resembles Ariel from The Little Mermaid (1989).

Original titles included "Holiday in Hawaii" and "Pretend Wife".

Jennifer Aniston refers to the saleswoman in the dress shop as Lori, which is her name in real life (Lori Heuring).

In the LAX scene Palmer is seen carrying around a Seventeen Magazine, an edition that featured Taylor Momsen on the cover. Momsen was one of the stars of the hit series Gossip Girl (2007) which is referenced a couple of times in the film.

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.

During the stage competition between them, Nichole Kidman wears a (more or less) Hawaiian-ish skirt whereas Jennifer Anniston wears a Tahitian costume. (Hawaii's traditional skirts are made of ti leaves., whereas grass skirts were initially from Tahiti, French Polynesia.) The body double for Kidman performs the traditional Tahitian Tamure dance---that is moving the hips and rear in a rapid-fire figure 8 fashion. However the music was first playing the ukulele, the traditional string instrument of Hawaii with the sultry twangy sound. Anniston goes from performing hip swaying (side to side) with swaying arms and hand motions traditional of the Hawaiian hula, to attempting the Tamure (also known as o'tea Tahiti dance), which is the rapid figure 8 dance movement from the hips/rear. Rapid-fire percussion (drums as well as hollowed out tree trunks, used as horizontal drums) are native to Tahiti and traditionally used for the Tamure dance. The hula is typically danced to the ukulele, the traditional mini guitar from Hawaii. The Tahitians having invaded Hawaii centuries ago, Hawaii now features traditional Tahitian dance and music, particularly at the Polynesian Cultural Center located on Oahu. What Anniston did, changing from one dance to the other and mixing both, is known as "fusion" of both Polynesian dances, and typically frowned upon by natives, as it both demeans their respective cultures, and confuses onlookers, tourists and foreigners alike, hence why it is important to make the distinction.

When Danny and Katherine first meet Devlin Adams (Nicole Kidman), she says that her husband (Dave Matthews) invented the iPod. Steve Jobs, the actual inventor of the Apple iPod, died 8 months after the movie's release.

Adam Sandler: [V] In Sandler's early films, the names of his love interests always began with a "V". The unfaithful bride Veruca (Jackie Sandler) at the beginning of this one hearkens back to that gag.

Jackie Sandler: Danny Maccabee's fiancée at the beginning of the film is Adam Sandler's real-life wife.

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.

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.

When Danny says "There's one problem, she's not you", it's a reference to Friends (1994), when Ross says about his current girlfriend Julie, "There's one problem, she's not Rachel." Rachel is played by Jennifer Aniston.