Dustin Hoffman has pledged to live to 100, so he can celebrate his youngest son's 50th birthday.
The Tootsie star has promised all his children he'll celebrate their half-century birthdays.
He says, "I have a pact with my kids. My youngest is 21 and I said, 'I want to be there for your 50th birthday,' which means I have to be 100."
And Hoffman is convinced hard work will help him get there.
He adds, "I'm not retiring. I'm against the concept. You retire from a job you don't like, but you never retire from your work."