Wizan died of natural causes after a long illness on Monday (21Mar11) in Westlake Village, California.
He began his career at top talent agency William Morris and helped to guide the careers of actor/director Sydney Pollack and moviemaker Robert Altman, before moving into film production.
His movie credits include 1970s pictures Junior Bonner with Steve McQueen, Jeremiah Johnson with Robert Redford, and Robert Wise thriller Audrey Rose.
Wizan also worked on 1984's Romancing the Stone and 1992 action comedy Stop! Or My Mom Will Shoot!, as well as the film adaptations of James Patterson's Alex Cross book Kiss the Girls (1997) and its 2001 sequel Along Came a Spider - the producer's final shoot.
He is survived by his wife Melanie, a son and a daughter, and two step-sons.