Wall Street: Money Never Sleeps (2010)

http://www.imdb.com/title/tt1027718/

As the global economy teeters on the brink of disaster, a young Wall Street trader partners with disgraced former Wall Street corporate raider Gordon Gekko on a two-tiered mission: To alert the financial community to the coming doom, and to find out who was responsible for the death of the young trader's mentor.