Batman Returns is probably one of the best Batman movies out there. You've got the epic portrayal from Michael Keaton as Batman himself, there is Danny DeVito as the twisted Penguin, but most importantly there was Michelle Pfeiffer as Catwoman.
She was purr-fect in basically every way. She was simultaneously psychotic and seductive, confusing poor Bruce Wayne at every turn.
Pfeiffer played Selina Kyle in a way that will probably never be matched.
Her commitment to the role was really what solidified her as most people's definitive Catwoman. She had fun in the role, but she also was put into some situations that she had to go through some pretty crazy stuff.
First of all, her catsuit was so tight that she would have to be powdered down before squeezing into the suit. She would then need to be vacuum-sealed.
She said that "it was the most uncomfortable costume I've ever been in. They had to powder me down, help me inside and then vacuum-pack the suit. They'd paint it with a silicon-based finish to give it its trademark shine. I had those claws, and I was always catching them in things. The face mask was smashing my face and choking me... we had a lot of bugs to work out."