Michael Douglas says he is feeling positive about his chances of beating throat cancer.
The interview on David Letterman's Late Show, was the first time the actor has spoken about his illness since announcing a fortnight ago that he was to undergo chemotherapy and radiation for a throat tumour.
Michael, 65, said he faced an "eight week struggle" to cope with his treatment for stage four throat cancer but that his chances of recovering were high.
"The big thing you're always worried about is it spreading, I am head and neck, nothing's gone down, and the expectations are good," the veteran actor said.
"The percentages are very good. I would hate to say, but right now, it looks like it should be 80 per cent, and with certain hospitals and everything, it does improve," he added.
Michael, who is married to Catherine Zeta Jones, said he has already started his treatment:
"It hurts, it comes and goes in waves. It knocks you out really hard."
Michael will soon be seen back on the big screen in the upcoming Wall Street sequel Wall Street: Money Never Sleeps.