State of Play (2009)

Set amidst the highest echelons of power, Cal McCaffrey is a street-wise reporter whose friendship with a powerful politician is tested when the politician's young advisor is killed by falling in front of a train. When McCaffrey discovers that the two were involved in an adulterous affair and evidence emerges that she might have in fact been murdered, a complex web of intrigue begins to unfold.

Official website: http://www.stateofplaymovie.net/