Sony has dropped the full-length trailer for the based on real events drama American Hustle [AMBUL] directed by David O. Russell [DORUS]. Whereas the teaser had fun with the 1970s setting, the new trailer switches to a completely serious tone about a real criminal scandal while pitching the star-studded film for the year-end award season. American Hustle opens in limited release on December 13th before expanding wide on Christmas Day.