One would think that when you’re Batman that you are the most intimidating person in the room. But it seems if you’re sharing the room with Jack Nicholson you may come in second place.

Michael Keaton appeared on Late Night With Seth Meyers to promote The Trial of the Chicago 7, and as seems to be the case when you’ve played the Caped Crusader, the topic came up.

Talking about the other actors in the Trial of the Chicago 7, Keaton shared how he “was pretty nervous and self-conscious about being with Jack (Nicholson), because he’s so strong on film, you know. And it ended up just being great.

This led to Meyers asking Keaton if he ever felt that Nicholson was aware of the way he made people feel and if he did anything to disarm them. “I would say he was pretty aware of his power,” replied Keaton. “He had (“has” Keaton corrected himself) so much power on screen. It was just cool. He made everybody feel really relaxed. Someday, in private, I’ll tell you how he greeted the crew in the morning. I certainly can’t do it on national television.”

And now everyone will wait to hear what exactly that story of Nicholson’s morning greeting was.

Keaton is currently rumored to return to the role of Bruce Wayne/Batman in the upcoming Flash movie, but nothing has been officially confirmed as of yet. Although the design sketches for the film sure do seem to be favoring a Batman that looks an awful lot like Keaton.

The Trial of the Chicago 7 is on Netflix now, and The Flash is set to hit theaters on Nov. 4, 2022.