HOLLYWOOD hunk Glen Powell yawned and shivered as he braved the cold on a Glasgow movie set.
The American actor, 36, endured the freezing conditions while shooting upcoming flick The Running Man in the city centre.
The Top Gun star was spotted with his hood up as temperatures plunged below freezing on Sunday morning.
And he was forced to do some exercises to keep warm between takes.
The movie heart-throb was seen jogging on the spot and lunging as he tried to stay alert while filming the reboot of the Arnold Schwarzenegger 80s classic.
An onlooker said: "It was completely bizarre when he started performing high-intensity exercises.
"And the best of it was nobody batted an eyelid, this must be completely normal behaviour for these movie types."
American Glen plays prisoner Ben Richards, who must dodge death by running to freedom in a deadly TV show.
King's book describes Richards as a "scrawny everyman" rather than the muscular cigar-chomping version played by Arnie.
But the reboot is tipped to be more faithful to King's vision.
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Elsewhere Glen and an entourage of movie makers transformed Glasgow's Bothwell Street into a dystopian New York.
The US actor was tasked with shooting a ten second scene which required him to strut around a street corner.
After his first take, the performer rushed over to a nearby monitor to watch back his star performance.
However after just seconds, he was ordered back to his starting position to shoot the scene again.
Armoured trucks and battered vintage motors also featured in scenes as well as a retro poster reading: "Want To Sell Your Organs?".