We don't really have to start campaigning for truth-of-narrative warning labels on historical movies, do we?
After all, the recent The Young Victoria and the upcoming The Last Station — the latter about the turmoil at the end of Leo Tolstoy's life — may take a few dramatic liberties with the facts, but all in all, they remain faithful to the lives of their subjects. And anyway, most people are smart enough to know that these things aren't meant to be documentaries; one should enjoy the show, without taking it all at face value.
Nevertheless, there's taking liberties, and then there's throwing the encyclopedia madly out the window. We've decided as a public service to compile a list of movies where the portrayal of historical figures has strayed significantly far from actual history. Read Top 10 Least Trustworthy Historical Figures in Movies, or embarrass yourself at parties later.