Who produce the American Christmas fantasy in which Robert Prosky has a supporting act? 
Robert Prosky:  Prosky's other notable movies include "" (1990), "Hoffa" (1992), "Mrs. Doubtfire" (1993), "Last Action Hero" (1993), "Miracle on 34th Street" (1994), "Dead Man Walking" (1995), and "Mad City" (1997). Miracle on 34th Street (1994 film): Miracle on 34th Street is a 1994 American Christmas fantasy film written and produced by John Hughes and directed by Les Mayfield.
John Hughes