Title says it all. What mistakes have you noticed in movies/tv shows that happen in the BP era like Daniel Boone, Patriot etc? Eventhough they try not to slip anachronisms, sometimes you can spot things that just don't fit with the era or even something in the background or an actor who forgot to take off his watch or whatever. Next weekend being Canada Day, I'm gonna have a 3 days weekend and have a second look at one or two movies and try to spot mistakes, out of place or out of period things for fun.