The Schindler's List star has enjoyed roles in a number of high-octane blockbusters in recent years, including The A-Team, Taken, Clash of the Titans and his latest film, The Grey.
The Oscar-nominated actor takes pride in his bravery and insists on refusing a body double for many onscreen stunts - but he admits age is catching up with him and he'll soon have to turn down meaty, all-action roles.
He tells U.K. talk show host Graham Norton, "I love doing my own stunts but it's hard. I am turning 60 this year and it's getting harder... The knees are starting to play up."