Robert De Niro has described how roles dry up at a certain age.
The Hollywood legend is about to star as a veteran parole officer in new film Stone.
But the 67-year-old said: "When you get older, you get offered less things, obviously. You get offered father parts, and at one point, grandfather parts. Or you get offered parts that aren't the leads."
The actor is happy to play a grandfather again in Little Fockers, the third chapter in the Meet The Parents comedy franchise.
After decades as a dramatic heavyweight, the two-time Academy Award winner said of his comedic roles: "My mother would always tell me how funny I was. And I have friends, actor friends, who would say, 'You should do a comedy'.
"Comedy, there's less pressure in some ways. You can have more fun taking a chance, doing things that normally might be considered too much or over the top or too crazy or too eccentric.
"But you can at least try them. All they can do is cut them out or say, 'Tone it down.' You have to be careful. You don't want to go too far."