Entertainment Studios has released the trailer for the drama Chappaquiddick [CHPQD] based on the real-life incident of July 18, 1969. Jason Clarke [JCLAR] stars as Senator Ted Kennedy who drove a car off the Dike Bridge on the island of Chappaquiddick. Kate Mara [KMARA] plays his passenger Mary Jo Kopechne who drowned in the accident. The tragedy and ensuing controversy cost the Senator a shot at the U.S. Presidency. Chappaquiddick opens in theaters on April 6th.