Paramount's delay of Shutter Island's release, once widely questioned, now looks shrewdly strategic. Sources tell me this 4th film collaboration between Marty Scorsese and Leo DiCaprio is shaping up tonight as the highest-grossing debut ever, bigger than 2002's Gangs Of New York, 2004's The Aviator, and 2006's The Departed (which posted their previous biggest opening ever of $26.8M).