Wallace's Galwegians attacked their OWN saint's shrine!

Didn't put this into the film, then, Mel?

"The Lanercost Chronicle describes with horror how in 1296 the men of Galloway had tossed relics into the flames and cut the head from a statue of St Andrew; at which the English chronicler Walter of Guisborough expressed wonder at Scotsmen showing such contempt for the saint he assumed to be their patron.

But in warfare the Galwegians were notoriously wild and violent, and perhaps it is futile to seek any special motivation for their atrocities. The real reason for Wallace’s anger was that the Galwegians were violating the immunity which he had granted to the Priory two weeks previously."

Source - https://asnoc.wordpress.com/2012/06/16/william-wallaces-invasion-of-northern-england-in-1297/