Robert Pattinson said he demanded a pee 'flap' on his batsuit after seeking Christian Bale's advice

• Robert Pattinson said on "Jimmy Kimmel Live!" that Christian Bale gave him advice for "The Batman."
• Bale, who previously played Batman, told Pattinson to work out a way to pee in his Batman costume.

Robert Pattinson said on "Jimmy Kimmel Live!" that he asked for a surreptitious flap in his "The Batman" costume due to advice given to him by previous Batman actor Christian Bale.

There have been multiple actors to portray Batman in movie and TV adaptations including George Clooney, Michael Keaton, and Ben Affleck. Pattinson is the latest to take on the role of the dark knight in a new gritty film about the character from director Matt Reeves.

During an appearance on "Jimmy Kimmel Live!" on Wednesday, Pattinson was asked by Kimmel if he reached out to any of the previous Batman actors to get advice.

"I was a bit scared to ask them anything but I bumped into Christian Bale," the "Twilight" actor said. "[I was] next to him in a urinal and I guess it kind of inspired him to say, 'The first thing you need to do in the batsuit is figure out a way to pee.'"

Pattinson continued: "So when I went to the costume department I was like, 'First things first. I need a patch. I need a flap on the back.' Easy access... I pee sitting down."

Marvel stars in the past have expressed how superhero costumes can be difficult to go to the bathroom in. Tom Holland, who plays Spider-Man, said during an appearance on "Live With Kelly and Ryan" in 2017 that it is a "mission" whenever he has to go to the bathroom because his costume covers his entire body.

"It looks amazing, [but it] feels terrible... going to the bathroom is a mission. You have to plan 45 minutes in advance," he said.

Garfield, who recently reprised his role as Spider-Man in "Spider-Man: No Way Home" told Variety that Holland was jealous of his spider-suit when the two of them acted together.

"Tom was jealous because I have little zippers in my suit that I can get my hands out of very easily," he said. "To work his phone, he had to use his nose because he couldn't access his hands."

"The Batman" is out on March 4.