 Trey Parker (I) (qv) and Matt Stone (I) (qv) agreed to do this  film under the assumption by the time filming began,  _"South Park" (1997)_ (qv) would have already been canceled. It  wasnt, and having been committed to both projects, had to attend  principal photography for this project during the day, and produce  _"South Park" (1997)_ (qv) during the night, leaving very little  time for any sleep.