The 35-year-old actor, who stars as the title superheroin the 2022 reboot, premiering Friday, told PEOPLE that he put in months of work toprepare his body for the role.

As shoot days grew closer, Pattinson had to be careful about every single thing he was consuming.

“You just cut down and cut down and cut down before the couple of scenes with your shirt off, and you’re counting sips of water,” he said.

Robert Pattinson inThe Batman(2022).Jonathan Olley/Warner Bros.

the bat man

Pattinson agreed with Parsons that knowing that he had to go shirtless in the movie was motivating.

“Oh yeah,” the star said with a laugh. “Shame is my biggest motivator, 100%.”

In the scenes when hewasn’tshirtless, Pattinson got to don the Batman suit, and he said the first time he put it on and looked in the mirror was an emotional moment that helped him feel more connected to the character.

“It’s funny because you read the script and you spend loads of time trying to figure out, ‘How can I play this character who does these sort of audacious acts?’ And the closer I got to the shoot I got more and more paranoid — you know, it feels ridiculous when you’re just sitting at home in a t-shirt — and then you put it on,” he said of the suit. “It’s got an elemental power to it.”

Robert Pattinson.ANGELA WEISS/AFP/Getty

Zoe Kravitz Robert Pattinson

Once it was on, Pattinson said, “People react to you differently, the crew reacts differently. Your entire world suddenly changes.”

“And then you kind of catch this glimpse in like, the subtle reflection or a shadow on the floor and you realize that the character’s just way bigger than you,” he continues. “It’s kind of like wearing a crown or something.”

Pattinson has lost weight for roles before, andtold PEOPLE in 2016that he had basically “eaten nothing” to play an adventurer who was lost in the Brazilian jungle inThe Lost City of Z.

“I had literally eaten nothing for the entire time,” he said. “I loved it afterwards, for like a week in London, where I have a 28-inch waist. I was like, ‘Ooh! Skinny jeans!’ "

But “that lasted for like, three days,” Pattinson said.

“After six or seven weeks of just eating half a little tiny bit of fish and like a crumb of rice, and then you eat a sandwich and you’ve got on 15 pounds afterward.”

source: people.com