What film produced by Ivan Reitman included the song "For You I will" ?
For You I Will (Monica song):  Her version was included on the soundtrack to the film "Space Jam" (1996). Space Jam:  The film was produced by Ivan Reitman, and directed by Joe Pytka, with Bruce W. Smith, Korey Coleman, Spike Brandt and Tony Cervone directing the animation.
Space Jam