(by vranger on 21 June 2009)

The first few times I saw this movie, I hadn't read the history of the Lincoln County Land Wars.
However, in recent years, with the convenience of the internet at hand, I read the histories along with watching the movie. Compared to the amount of factual change that most movies based on a history put on film, this movie is not far from being spot on.
In fact, the amount of direct action that John Wayne's character, Chisum, took in the film, is probably the element that is the most out of place.
Billy the Kid really did work for an English rancher involved in the dispute. His boss really did fund a rival general store with a lawyer. Both the English rancher and the lawyer were murdered by the faction controlled by the rival general store.
Billy the Kid really did get his outlaw career kicked off in seeking vengeance for his boss and mentor's murder. Pat Garret really was supported for sheriff by John Chisum, who somehow managed to stay out of the thick of the feuding even though his use of huge tracts of public grazing land was part of the heart of the dispute.
So history buffs can safely enjoy this movie knowing that history is just bent a little, and not ripped completely asunder as the case would be with most movies. LOL That said, this is a very entertaining western. John Wayne is on top of his game as a cattle baron, and the supporting cast does a fine job. It includes a bit of everything: rustling, gunfights, stampedes, crooked sheriffs, greedy bad guys, heroic good guys. It has more plot surprises than the normal western (and that is precisely because it kills off certain characters approximately when and how they died in the real events).
All in all, an enjoyable and surprisingly informative film about a real "old west" feud.