Revealing mistake: In the closing scene, you can see the modern curb & sidewalk have been covered with dirt.
The Shootist (1976)
1 revealing mistake - chronological order
Directed by: Don Siegel
Starring: John Wayne, Ron Howard, James Stewart, Lauren Bacall
Factual error: The opening montage depicting Books's past exploits mentions a Colt .45 and shows a single action Colt revolver being fired. The date indicated on the screen is 1871. This revolver was not manufactured until 1873.
John Bernard Books: Bond, I don't believe I ever killed a man that didn't deserve it.
Bond Rogers: Surely only the Lord can judge that.