When Trinity is ready to leave the Mormon camp after their meal, he puts his hat on, with the strap to the back of his head. But when he is riding away, his hat falls off with the strap around his neck.
In a scene with the settlers, they hang a large, clear water jug on a rope and is seen swinging next to Trinity, the scene cuts and is seen hanging almost perfectly still.
The theme lyrics state that Trinity "keeps alive with his Colt .45." In fact, the revolver Trinity uses throughout the film is a Griswold & Gunnison .36 sporting a Colt Model 1851 barrel, also .36 caliber.
Bambinos shirt features chest pockets with poppers. While poppers are somewhat correct for the time (patented in Germany in1885), chest pockets are not. The came into use after the demise of men's vests. Which was long after the wild west.
The famous "Time for everything under the sun" passage (Eccl. 3:1-8) does not, contrary to Tobias' statement, include "A time to fight and a time to win."