Visible crew/equipment: When John Wayne is on the wagon and the Comancheros are leading them to the secret hideout, for a split second in the background, a large truck and a trailer that seems to be camouflaged in the background are visible.

The Comancheros (1961)
1 visible crew/equipment mistake - chronological order
Directed by: John Wayne, Michael Curtiz
Starring: John Wayne, Nehemiah Persoff, Ina Balin, Stuart Whitman
Factual error: The movie is set in 1843-44, when the rest of the world is still using cap and ball weapons, yet Ranger captain Jake Cutter is wielding a gunbelt with filled cartridge loops and a colt six-gun.
Paul Regret: How do you know you killed him?
Ranger Capt. Jake Cutter: There wasn't time not to.





Answer: There's no specific meaning. Metaphorically, it would mean that it is the beginning of something that is dismal, is going to be long and difficult to achieve, or may not end well. Basically, it's a "bad omen."
raywest ★