Lionsgate and Roadside Attractions, via Yahoo! Movies, have released the first official trailer for political thriller The Conspirator.

Directed by Robert Redford, The Conspirator stars Robin Wright, James McAvoy, Justin Long, Evan Rachel Wood, Tom Wilkinson, Alexis Bledel, Johnny Simmons, Toby Kebbell, Kevin Kline and Danny Huston.

In the wake of Abraham Lincoln’s assassination, seven men and one woman are arrested and charged with conspiring to kill the President, Vice-President, and Secretary of State. The lone woman charged, Mary Surratt (Wright), 42, owns a boarding house where John Wilkes Booth and others met and planned the simultaneous attacks. Against the ominous back-drop of post-Civil War Washington, newly-minted lawyer, Frederick Aiken (McAvoy), a 28-year-old Union war-hero, reluctantly agrees to defend Surratt before a military tribunal. Aiken realizes his client may be innocent and that she is being used as bait and hostage in order to capture the only conspirator to have escaped a massive manhunt: her own son, John (Simmons).

The Conspirator will be released in the US in April. A UK release date is not yet known.