A Broadway Musical musical adaptation of this movie, opened at the Al Hirschfeld Theatre on April 27, 2006, ran for 285 performances and was nominated for the 2006 Tony Awards for the Best Musical, Actor (Stephen Lynch), Book and Score.
Although Steve Buscemi's and Jon Lovitz''s appearances in the film are uncredited, at the soundtrack section on the end credits the songs "True" and "Ladies Night" are marked as "Performed by Steve Buscemi" and "Performed by Jon Lovitz" respectively.
In this film, Robbie mentions someone with the name Eric Lamonsoff. The name Eric Lamonsoff was later given to a character played by Kevin James alongside Adam Sandler in the movies Grown Ups (2010) and Grown Ups 2 (2013).
Coincidentally, this movie has several actors who have at some point appeared in the TV show Friends. Christine Taylor (who plays Holly) appeared as Phoebe's friend and Ross's potential girlfriend Bonnie-the one who shaves her head. Christina Pickles (who plays Julia's mother) plays Monica and Ross' mother. Incidentally, she mentions in the car to Julia -before Robbie is to marry Linda- that Julia's paternal grandmother has facial hair and looks like Magnum P.I., who is played by Tom Selleck, who also plays Richard, Monica's boyfriend. Jon Lovitz, who plays Jimmy Moore, the other wedding singer appeared on Friends twice. He played the pot smoking restaurant owner who offers a potential job to Monica in the first season and later reprised that role when Phoebe sets him up on a date with Rachel. And Angela Featherstone, who plays Robbie's fianceé, plays the hot girl who works at the copy shop and who Ross "cheats" on Rachel with when they were "on a break".
When Holly (Christine Taylor) says she wants to see exactly what Julia's (Drew Barrymore) church kiss will look like, Julia starts to approach Holly to kiss her. Holly says, with disdain, "not on me, on him," pointing to Robbie Hart (Adam Sandler). In the movie "Dodgeball," however, Christine Taylor's character, Kate Veatch, plays a bi-sexual woman who has no trouble kissing a woman toward the end of that movie.
The role of Glenn Gulia was originally written with Jim Carrey in mind. However, he declined. If Carrey had accepted the role, this would be the first and only time he and Adam Sandler would co-star in a film together.
Robbie only sings at two weddings in the entire movie singing three songs total. The song he sang at first wedding in the opening scene was You Spin Me Right Round by Dead or Alive. At the second wedding he sings Holiday by Madonna and Love Stinks by J. Geils Band after he was stood up by Linda at his own wedding.