I agree with h_D about the effect that Braveheart (and Rob Roy) had on Scottish self-confidence. I think far too many liberties were taken with the stories of both characters (why change the name of Rob Roy's wife?). Maybe the historical allusions would perhaps have been better illustrated by having Jean Reno playing Wallace? He was after all, a Strathclyde Welshman and part of the Norman-Flemish aristocracy (Sir William Wallace of Elderslie) who probably spoke Norman French better than he spoke Scots. And, and...

But it really gave a boost to the Scots.