Ben Affleck got some sage advice from an actor who played the role before him. Christian Bale shared some of his wisdom with the Batman v Superman: Dawn of Justice star recently.

It was while walking the red carpet at the New York City premiere of the film that Ben Affleck shared the story.

“I ran into him at a costume shop when we were both buying costumes for our kids and we talked,” Affleck said of Christian Bale.

Ben Affleck revealed the one piece of advice Christian Bale gave him about playing Batman: https://t.co/wScL81mKYQ

— Us Weekly (@usweekly) March 21, 2016

So what was the advice proffered to Ben Affleck from his “Batman” predecessor?

“Make sure they put a zipper in the suit!” Affleck said at Sunday’s premiere.

Christian Bale recently admitted that even though he gave up playing Batman in 2012, he felt twinges of jealousy when learning Ben Affleck was taking over the role.

“I’ve got to admit initially, even though I felt that it was the right time to stop, there was always a bit of me going, ‘Oh go on…Let’s do another,'” Bale told Empire magazine. “So when I heard there was someone else doing it, there was a moment where I just stopped and stared into nothing for half an hour.”

“But I’m 40,” he added. “The fact that I’m jealous of someone else playing Batman…I think I should have gotten over it by now.”

Find Out Who Zack Snyder Almost Cast Christian Bale As In ‘Batman v. Superman’ – https://t.co/C5W2RcAo1c pic.twitter.com/McKhCh8w2i

— People's Choice (@peopleschoice) March 19, 2016

If he isn’t, there’s not much he can do about it now. Ben Affleck will soon appear in Batman v Superman: Dawn of Justice when it opens in theaters nationwide on Friday.