Paul Dano Says He Wrapped Himself In Plastic Wrap For "The Batman" To The Point Where He Had Trouble Sleeping

The Batman — yes, the one starring Robert Pattinson — is already one of the most anticipated movies of the year.

Along with Pattinson, Paul Dano (who you might remember from There Will Be Blood) plays one of Batman's nemeses, the Riddler.

In an interview with Entertainment Weekly, Dano revealed that playing the Riddler was so intense that he ended up losing sleep while immersed in the role.

“There were some nights around that I probably didn’t sleep as well as I would’ve wanted to just because it was a little hard to come down from this character,” he explained.

“It takes a lot of energy to get there. And so you almost have to sustain it once you’re there because going up and down is kind of hard.”

Dano says that part of the reason he had trouble sleeping was because he'd wrap himself in plastic wrap to get into character — since The Riddler doesn't like leaving DNA at crime scenes.

“My head was just throbbing with heat,” Paul remembered. “I went home that night, after the first full day in that, and I almost couldn’t sleep because I was scared of what was happening to my head."

"It was like compressed from the sweat and the heat and the lack of oxygen. It was a crazy feeling.”

Read the whole interview here. The Batman hits theaters on March 4.