Ian McDiarmid “thought [he’d] gone too much too far” during his Palpatine vs Mace Windu duel in ‘Star Wars: Episode III - Revenge of the Sith’.The 80-year-old actor - who has portrayed Emperor Palpatine in the sci-fi saga since 1983’s ‘Return of the Jedi’ - battled Jedi master Mace Windu (Samuel L. Jackson) during director George Lucas’ 2005 prequel blockbuster, though has now admitted he thought he had overdone it during the fight.He told Variety: “I thought I’d gone much too far, and George said, ’No, no, you can go much further.’ It’s the moment when the monster becomes available and he is ecstatic with delight because he can lose the hypocritical face. “When we were doing ‘The Phantom Menace’, George said, ‘You should think of your face as a carapace’ - as if we’d made me up, and underneath was the real person. That was great,...