Marcia Gay Harden and Zac Efron in Parkland (2013)

Marcia Gay Harden and Peter Landesman in Parkland (2013)

James Badge Dale and Jacki Weaver in Parkland (2013)

Paul Sparks and Peter Landesman in Parkland (2013)

Mark Duplass, Brett Stimely, Tom Welling, and Kat Steffens in Parkland (2013)

Colin Hanks and Zac Efron in Parkland (2013)

Marcia Gay Harden, Colin Hanks, Brett Stimely, and Tom Welling in Parkland (2013)

Billy Bob Thornton, Paul Giamatti, and Paul Sparks in Parkland (2013)

Billy Bob Thornton, Marcia Gay Harden, Paul Giamatti, and Zac Efron in Parkland (2013)

Gary Clarke, Daniel Zubiate, and Kat Steffens in Parkland (2013)

Jacki Weaver and Sarah Joy Byington in "Parkland" (2013).

Larry Douglas, Armando Gutierrez - PARKLAND Movie 2013

Actress Bitsie Tulloch arrives at the "Parkland" premiere during the 2013 Toronto International Film Festival at Roy Thomson Hall on September 6, 2013 in Toronto, Canada.

Billy Bob Thornton and Larry Jack Dotson in Parkland (2013)

James Badge Dale and Larry Jack Dotson at an event for Parkland (2013)

Billy Bob Thornton, Marcia Gay Harden, Paul Giamatti, Jacki Weaver, and Zac Efron in Parkland (2013)