Usually Stanley Kubrick is really detail oriented in his movies. That said, I watched Barry Lyndon for the first time in many decades. The scene where Barry is fighting for the Prussian army, he is in a building where they are shooting out of a window, it's hard not to notice the flintlock muskets are actually have trap door actions with a fake flint on the hammer. Also, the (obviously fake) frizzen is open before firing. My wife thought I was going mad since I was laughing so much during that battle scene. Anyone else pick up on this?