Average Shot Length (ASL) = 4.5 seconds (2005 DVD Version). This is fast by most 1970s' film standards, but quite slow for Sam Peckinpah. For example, The Wild Bunch (1969) has an A.S.L. of three seconds, Junior Bonner (1972) 3.5 seconds, The Killer Elite (1975) four seconds.
Barry Sullivan (Chisum) had played Pat Garrett in the TV series The Tall Man (1960). And James Coburn (Garrett) will play John Chisum in "Young guns II" (1990).
Kris Kristofferson was 36 at the time of filming, playing a character of 21.
Monte Hellman was supposed to direct the film as a follow-up to Two-Lane Blacktop (1971) (which was also written by Rudy Wurlitzer). His first choice to play Billy was James Taylor (who starred in "Blacktop").|