The scene where Longshanks throws his son's lover out the window. If you press rewind, he flies back up again!
"I shoulda remembered about the stone."
"...and if he were here, he'd kill the English with fire from his eyes and thunder from his arse."
At the battle of Falkirk, the Scottish army and Longshanks' Irish soldiers are charging at each other, but just before they're about to fight, they stop and greet one another, much to Longshanks' annoyance.