When was the American comedy film released which was written by Herschel Alan Weingrod with  Murray Salem?
Herschel Weingrod: Herschel Alan Weingrod (30 October 1947 Milwaukee, Wisconsin, United States) is an American screenwriter. Herschel Weingrod:  He has written and co-written a number of Hollywood blockbusters including "Trading Places", "Twins", "Kindergarten Cop" with fellow writer Murray Salem and the 1996 movie "Space Jam". Kindergarten Cop: Kindergarten Cop is a 1990 American comedy film, released to cinemas in the United States on December 21, 1990, directed by Ivan Reitman, distributed by Universal Pictures.
December 21, 1990