Michael Douglas has confessed riding the Stratosphere rollercoaster for new film Last Vegas was "the worst experience".
The 69-year-old actor stars with Morgan Freeman, Robert De Niro and Kevin Kline in the comedy about a group of old friends on a stag party in Las Vegas.
Michael and Mary Steenburgen, 60, who plays a lounge club singer his character falls for, both had to ride the 1,000-foot rollercoaster which is on top of a skyscraper in the city.
Michael admitted: "It was painful! That was the worst experience. When you get on that ride you don't quite understand what's going on, what's about to happen.
"You're up there, close to 1,000ft, the wind's blowing and you can see further than you would ever want to see in your entire life, All of a sudden it rises, the track goes out and over the end of the building into the air and then... drop! 1,000ft in the air and it drops just like that! Needless to say, they got the shot and we were very happy to get out of there."
Mary admitted that she went on the ride the day before they filmed the scene - to check that they weren't going to "die of a heart attack".
But Michael, who has two children with actress Catherine Zeta-Jones, revealed the experience earned him a bit of street cred with his brood.
"I came back as a total hero," he said. "My son knew about the Stratosphere. He couldn't believe I did it."
:: Last Vegas is in cinemas now.