Probably the best movie of this director: a true celebration of the legend of the American west. The movie tells the classic story of the gunfight at the OK Corral with sheriff Wyatt Earp: while it isn't historically realistic, it outshines ALL later attempt to do a more accurate version of the story. The reason is simple: Ford always said that "the legend is more interesting than the truth". Of course it's a Hollywood movie, and it's not a revisionist Peckimpah western, but it has interesting characters (even the lesser one such as the barman are believable and add some human touches), a solid plot, a great screenplay (don't miss the Shakespearean actor who wants to perform in a saloon!!!) and an EXTRAORDINARY B&W cinematography.
The FOX cassette version is very good!