The original title for this movie was going to be "A Brief Moment in the Life of Angus Bethune."
Weezer was asked to write a song inspired by this film and Rivers Cuomo read the script and wrote two songs: "Wanda" in which he sings from a first persons point of view with lyrics such as: "my mom drives a big rig, and my daddy's gay" which referenced the the original script, and "You Gave Your Love to me Softly". Only the latter was used.
Throughout the film, the band Green Day is referenced many times. Green Day's then producer Rob Cavallo is the film's executive producer. This isn't by coincidence. Cavallo has never produced movies, only albums for Reprise Records.
In the original short story, Angus' dad was alive and both of his parents were gay. When the movie was first shot, Angus' mom was straight and his dad was gay. After the final cut, the filmmakers decided to abandon the "gay parents" situation for good. The beginning - and some key scenes - were re-shot with George C. Scott in his present role as Angus' grandfather.
Prior to release, the film was cut almost in half in length, deleting many scenes. Some of the scenes were shown on the TNT cable version of the film.
The shots in front of the school and at the football game were shot at Owatonna High School in Owatonna, Minnesota. The marching band playing during the opening credits is the actual Owatonna High School Marching Band.