Hathaway has called the role her most physically demanding yet, especially fitting into the character's signature leather costume. Hathaway works out five days a week for the role, including rigorous exercise and stunt training followed by an hour and a half of dance.

She explained, "I've always thought that skinny was the goal, but with this job I also have to be strong." Aside from her physical demands, Hathaway comments on her suit being used for her character: "[The leaked photos are] disappointing. I think everyone feels a slight frustration with it because those stills so undercut the work that’s being done," she said.

Hathaway also commented on her distinctive choreographing style: "They've given me a martial arts exercise that I have to do all the time to teach me grace and proper stance and fluid movement. It looks so gentle, but when you're actually doing fight choreography it's 'Oh my gosh, that's actually a block. Oh, I'm hitting somebody's throat right now'."