Sam Peckinpah's West: Legacy of a Hollywood Renegade 2004
as Self
The Killer Elite 1975
as Mat
Junior Bonner 1972
as Tim Bonner
King of the Hill 1972
as Matt
The Ballad of Cable Hogue 1970
as Matthew
The Wild Bunch 1969
as Boy Watching Robber Scoop Up Moneybag (uncredited)
Credits from TMDB.