Seven Years’ War – Battle scene (Barry Lyndon, 1975)
Flintlock musket demo (a British reenactor demonstrating top speed for re-loading a “British Brown Bess”-style flintlock musket & getting 3 shots off in 46 seconds)
Flintlock Loading (slower motion, FYI)
American Battlefield Trust – Bunker Hill (this organization has created many such 4-minute explainers, they’re all quite good)
Revolutionary War Battles, interactive maps and other resources from American Battlefield Trust
Mount Vernon, Yorktown Battle Animation (there’s also a Winter Patriot film covering the winter of 1776-1777 and the battles of Trenton and Princeton)