Physicality is a huge key to any actress' performance as Catwoman — and while many have come and gone, there's one in particular that stands the test of time. For a lot of Bat-fans, Michelle Pfeiffer's work in "Batman Returns" cemented her as the definitive Catwoman. The actress has been outspoken about the process, from her stunning (yet asphyxiating) suit to the whip she learned to handle herself. Her dedication to the role astounded everyone, including the film's director, Tim...