Academy Award Winning Composer James Horner, wrote three complete and unique scores for this film. A lot of it were based on classical adaptations on Handel and his music is barely heard in the final mix of the film and a lot of what he wrote went unused.
Most of the score heard in the film was performed by Train to Sligo, an Irish-Traditional band that played in the Los Angeles area in the mid-1980s. The band included singer-songwriter Thom Moore, vocalist/bodhran player Janie Cribbs, guitarist Gerry O'Beirne, penny whistle player Paulette Gershen, fiddler Jerry Macmillan and hammered dulcimer player Judy Gameral.
Though set in 1965, virtually every school bus in the film was manufactured in the late-1970s and early-1980s. Most of them were built on truck cowls that didn't exist at the time, and contained features such as amber flashing lights next to the red ones above the windshield, which didn't exist in New York State until 1973.