“American Hustle” is now officially one of the buzziest films of the awards season. The anticipation for director David O. Russell’s fictionalized account of the FBI’s late 1970s ABSCAM sting operation was already heated thanks to its magnificent cast and a trailer that bursts off the screen. On Tuesday of this week, though, the polarizing yet influential New York Film Critics Circle surprisingly awarded it best film and best screenplay, catapulting the film into heavyweight status.