At around an hour and twenty minutes into the movie there is a scene where a girl is carrying a tray with 6 glasses of which 5 are full and 1 is empty.
In the next shot however there are 7 glasses on the tray of which 3 are full and 4 are empty.
When Cuchillo is outside the ranch house betraying the ranch hands, and one of them confronts him from behind a rock, the ranch hand has just worked the action on his single action rifle. You can see that because it leaves the trigger in the back/fire position and that is clearly shown. The camera pans to Cuchillo for about three seconds, and when it comes back to the ranch hand, the hammer is down on the rifle.
When Cuchillo grabs a knife from a table after describing himself as "a peaceful man", a mic is visible to his right.