Leslie Hope's debut.
Many actual students of the real school, St. Michaels, appear as extras and background characters in the film.
While the school buildings were filmed at St. Michaels, the rope course, horse stable, and woods were filmed at other locations and not part of St. Michaels.
The actual headmaster of St. Michaels, John Shaffter, portrays the headmaster of St. Martins, in the scene where Mouse's brother is expelled.
St. Martins in the movie is portrayed by St. Michaels University School, an actual boarding school in Victoria, BC, Canada. Most of the accoutrements of the school are simply those of St. Michaels, sometimes slightly altered or covered over.