Mark Wahlberg says he had nerves ahead of performing some of his stunts for Transformers: Age of Extinction.
Wahlberg has returned to the big screen this summer as he stars in the Transformers franchise for the first time.
The movie saw Wahlberg did many of the stunts himself, but admits that he is not the fearless youngster that he once was.
Speaking to the Press Association, the actor said: "If it's on the ground, that's not a problem, but 20 storeys up, that's pretty nerve-racking.
"Michael was like, 'What's the matter? You're holding onto the wall? I've heard all these stories about you jumping off buildings, jumping out of windows...'
"I was like, 'Dude, that was a long time ago, I have four kids, I'm very successful now. I have plenty of reasons to live!'."
Age of Extinction sees Wahlberg reunite with director Michael Bay, while Nicola Peltz, Jack Reynor, and Stanley Tucci are just some of the other names on board.
Transformers: Age of Extinction has already enjoyed huge box office success, and has grossed over $752 million.
It has jumped over X-Men: Days of Future Past to become the highest grossing film of 2014. Will it become the first film of the year to break the billion dollar mark?
Transformers: Age of Extinction is out now.
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