Goofs

When Loco (Django's Mexican friend) throws his machete at the two baddies outside, which instead misses and sticks in the fence, the sun's shadow on the blade is at four o'clock. When Django shoots the two baddies immediately after this, the sun's shadow on the blade is suddenly at two o'clock.

In the final confrontation between Sartana (George Ardisson) and Mr. Singer (Bernard Faber), Sartana follows Singer out of the room and down the steps all the time firing at the ground. Mysteriously, he fires his "six-shooter" twelve times in succession without stopping to reload.