The Conspirator is a 2010 American mystery historical drama film directed by Robert Redford and based on an original screenplay by James D. Solomon. It is the debut film of the American Film Company. The film tells the story of Mary Surratt, the only female conspirator charged in the Abraham Lincoln assassination and the first woman to be executed by the US federal government. It stars Robin Wright as Mary Surratt, together with James McAvoy, Justin Long, Evan Rachel Wood, Jonathan Groff, Tom Wilkinson, Alexis Bledel, Kevin Kline, John Cullum, Toby Kebbell, and James Badge Dale.