Zac Efron, Paul Giamatti, Marcia Gay Harden in "Parkland" First Trailer

A recounting of the chaotic events that occurred at Dallas' Parkland Hospital on the day U.S. President John F. Kennedy was assassinated. "Parkland" stars Zac Efron, Paul Giamatti, Marcia Gay Harden, Tom Welling, Colin Hanks, James Badge Dale and Billy Bob Thornton. Written and Directed by Peter Landesman. This is the first trailer in HD.