Writing · b. 1959 Timothy J. Sexton Other Credits Cesar Chavez Writer 2014 Gravity Thanks 2013 The Liberator Screenplay 2013 Ghost Recon: Alpha Writer 2012 Year of the Nail Thanks 2007 Children of Men Screenplay 2006 Walkout Teleplay 2006 Live from Baghdad Writer 2002 Y Tu Mamá También Thanks 2001 Boycott Writer 2001 For Love or Country: The Arturo Sandoval Story Writer 2000 Katuwira, donde nacen y mueren los sueños Screenplay 1996 Agent-readable