Two more board ensemble drama.

Zac Efron (‘The Paperboy,’ ‘The Lucky One’) and Marcia Gay Harden (‘Mystic River,’ ‘Pollock’) have landed roles alongside Paul Giamatti (‘The Ides Of March,’ ‘Cinderella Man’), Billy Bob Thornton (‘Eagle Eye,’ ‘Sling Blade’) and Jacki Weaver (‘Silver Linings Playbook,’ ‘Animal Kingdom’) on the ensemble drama ‘Parkland.’

Based on the book ‘Reclaiming History: The Assassination of President John F. Kennedy,’ by renowned author and former prosecutor Vincent Bugliosi, the adapted screenplay is written by award-winning journalist and novelist Peter Landesman, who will also direct ‘Parkland’ marking his directorial debut. ‘Parkland’ recounts the dramatic true story of the chaotic events that occurred at Parkland Hospital in Dallas on the day President John F. Kennedy was assassinated on November 22nd1963.

The film, to be shot in Austin, Texas is destined for a 2013 US theatrical release around the 50th anniversary of the assassination.

‘Parkland’ will be produced by Playtone partners Tom Hanks and Gary Goetzman and Exclusive Media, who will also be financing. Exclusive Media’s Matt Jackson will oversee the production.