I saw Fistful of Dollars at an officers club in Vietnam. The projectionist had already started the movie when I wandered into the room and sat down. After a couple of minutes, I told him to stop and rewind while I returned to the bar an announced, "Hey, everybody. You have to see this movie. I've just watched a couple minutes and the gunman has already killed about 20 people." Everybody in the bar followed me back into the room and the projectionist restarted it.
This memory came back as I watched this interview. I also remember that we never saw a full movie over there. By the time each film reached us, it was pretty well battered. It would break the the projectionist would scan the torn sprocket holes until he found a good stretch of film and tossed the bad.