The Oscar-winning actor, 54, told the BBC that he is contemplating an end to acting because the camera can be "unforgiving" to actors as they age.
"It's a very unforgiving thing, the camera is, so aging becomes something you try to do less and less onscreen," the Hail, Caesar! star explained. "You try to pick the films that work best for you and as you age they become less and less.
"As you age onscreen you get to that point where you really understand you can't stay in front of the camera for your whole life," he also said.
But not to worry, the actor and activist doesn't have plans to walk away from the movie business completely. He explains that a step away from acting would give him more time to devote to his true passion: directing.
"It is my great love and I do enjoy it a lot," says the star, who was nominated for a Best Director Oscar in 2006 for Good Night, and Good Luck.
"I've had really great success and had some not-so-successful films, and that's also part of the experience," he continued. "But what I'll say is that it's really fun."