There is no "Official Banknote Printing Company". All U.S. banknotes are printed by the Bureau of Engraving and Printing, a division of the United States Department of the Treasury. The paper used for printing, however, is manufactured by a private company, Crane Currency.
During the first pursuit, the truck is black but in the close-up, the truck is white even before the color change occurs behind the building.
False Face has tied Batman and Robin to the underground subway railroad tracks, however a close-up of Batman's head lying on the tracks reveals that they are actually constructed of silver-painted timber, as the wood grain and oval knots are clearly visible underneath the paint.