Place half the graham crackers onto bottom of a 9"x13" pan; set aside. In a mixing bowl, combine cream cheese and one cup milk; set aside. In another mixing bowl, combine remaining milk, pudding mixes. and vanilla extract. Mix until well blended. Add to cream cheese mixture and mix until smooth. Add whipped topping. Mix well. Spread half the pudding mixture evenly over graham crackers in pan. Arrange remaining graham crackers over top. Spread with remaining pudding mixture. Freeze two hours. Let stand 20 minutes before cutting. Spread with cherry pie filling.