I like movies that portray history as it actually happened. One concern I have with the Gibson movie was the scene where the movie's Col. Tavington (a stand-in for British Col. Tarleton) burns people alive in a church. Tarleton burned farm animals alive in a barn, not people. However, some British and their Indian allies did burn people alive in their cabins in Pennsylvania during the war.
I guess it is movie license to throw facts into a blender and show on the screen whatever comes out.
I'd be happy to see a movie on Francis Marion. Wasn't there an old Disney TV series about him? Of course, Disney has gone on to make far less wholesome movies these days.
Marion captured one British fort by having a soldier shoot flaming arrows at it and another by erecting a sharpshooters' tower above the wall. Talk about made for the movies!