When one of the Henry boys goes to wake up Doc, he taps him with the pistol, and then we hear the click of him cocking it. If you watch closely, you can see that the gun was cocked when Doc was originally woke up.
When Valentine is on the porch with the 1887 Winchester lever action shotgun, he loads it, then racks the lever closed; in the next frames, the lever is down, action open again.
Lever down, action open is a safety for lever guns. They can't fire from that position.
Lever down, action open is a safety for lever guns. They can't fire from that position.
When Jenny is leaving the Sherriff's office the Henrys pull up right in front of the building, and the shades are down. In the next scene when Valentine and Tess are inside the building, the shades are up and you can see that no one is in front of the building.
When Leland is reading the Government's letter to Valentine, he picks up his magnifying glass twice.
In one shot up at the balloon, a jet contrail can be seen.
When Valentine goes out to talk to the Henrys outside of the Sherriff's office, when we see Valentine from the back, you can see a security camera on one of the buildings in the upper left-hand corner.