"I don't have a job where you go home at the end of the day, you go, 'Well, I better clean up,'" Michael Keaton recently explained to "CBS This Morning" co-host Charlie Rose. "'Birdman' made me feel that way."
Keaton said, coming off the "Birdman" set each day, he felt, "'I need a damn shower because I just came form the mill and I worked my ass off.'"
In "Birdman," Keaton plays a onetime Hollywood superhero mounting his career comeback on Broadway. It is not, says the actor who famously portrayed Batman, a parallel of his own life.
"I don't think we had the time to say, 'Well, you know, you played Batman and you're an actor,'" Keaton said.
"For me, I thought, 'Well, this'll drag me and it down. Let's just jump over that because we have got a lot, we've got alotta work to do here, you know."
Rose said that the film has hit a nerve with audiences.
"I know...I think it has to do with just really simple humanity," Keaton said. One person who was struck by the film was Jack Nicholson. Keaton described an exchange he recently had with his "Batman" co-star.
"Nicholson, I called him and said, 'Hey, would you come see this movie of mine?' And afterwards he looked and me and he said, 'Oh, masterful...I'm glad you made this Keaton, 'cause now I don't have to make it," he revealed.
Nicholson isn't the only one interested in Keaton's career. Even President Obama wonders what the actor is doing next. According to Keaton, Mr. Obama didn't hold back when the two first met.
"'Why don't you make more movies?' That's the first words out of his mouth. Which was a little disconcerting," said Keaton.
Rose spent time with Keaton at his home in Los Angeles and his ranch in Montana, where he's lived for most of the last 25 years.
Even though far from Hollywood, the actor hasn't stopped working since his first film role in 1982's "Night Shift."
Much of his recent work, including this year's "Need for Speed" and "RoboCop" has been in supporting roles -- quite different from the groundbreaking characters he created decades ago with director Tim Burton.
Keaton admitted that when Burton first approached him to play Beetlejuice, "I had no idea what he was talking about, but I liked him."
The actor also revealed that he wouldn't have made "Birdman" if he had starred in any additional "Batman" films after 1992's "Batman Returns."
As for his latest role, he doesn't mind if you call it a comeback.
"Have at it," Keaton said.