These big bads lived up to their name...and then some! For this list, well be looking at the big screen battles between the protagonists and the villains that gave the heroes the fight of their lives. Our countdown includes Avengers: Endgame, The Matrix, Harry Potter, and more! Which movie boss fight do you think gave the heroes the toughest time? Let us know in the comments. Watch more great action videos here: Top 50 Best Action Films of All Time: