Actors are frequently required to undergo bodily modifications in order to seem the part they act in movies. For example, Robert Pattinson had to put in a lot of effort for his latest superhero film, 'The Batman,' in which he plays the title character.

The actor shared diet and fitness secrets that helped him become the caped crusader. In conversation with On Demand Entertainment, where he was joined by co-star Zoë Kravitz, the 35-year-old revealed that he “never want[s] to see a piece of white, boiled fish with just lemon on it”, referring to his restrictive diet.

He also alluded to the fact that there was no “pizza” on the plate for the entire duration of shooting for the film.

The Twilight star added that he had to work out a lot, and that the routine got easier with time. “Training’s a lot more fun when you kind of get good at it. Once you pass over the kind of six-week mark, then it’s all right… Then you feel bad if you’re not doing it. It’s kind of what everyone says,” he said.

The actor joked and said, “No matter how many times you realize, ‘If I just maintain it, it’s going to be great and I don’t have to experience the bad part again’, as soon as the job’s done, you’re like, ‘No, I’m not going to train once.’”