MARTIN Compston has been spotted at a popular Glasgow bar and restaurant trying an unusual looking pizza as he takes a break from filming his upcoming documentary.

The Greenock-born actor was seen in the city with his filming partner Phil MacHugh as the pair took a short break from the production.

The new series for BBC Two and BBC iPlayer follows the Line of Duty actor as he returns to Scotland from his family home in Las Vegas.

READ MORE: Martin Compston says issues in Sweet Sixteen present now 'more than ever'

Reuniting with his friend MacHugh, together they set off on an immersive and personal journey to showcase what makes modern Scotland tick, finding out who are the people and places shaping the future of the nation.

The National:

MacHugh, a Gaelic language presenter, posted a picture with Compston to Twitter along with a pizza covered in skinny fries which is aptly titled the “Hangover 2”.

He tweeted: “Couldn’t come to #Glasgow and not tuck into the latest craze - The ‘Hangover 2’ pizza at @cransidekitchen

“A wee break from filming #ScottishFling with my G @martin_compston tonight before we’re back on the road again tomorrow … Where next?"

Despite the famous faces in the picture, the pizza was the real star, with commenters eager to try dish with a Scottish twist.

The National: The Hangover 2 ... A Scottish take on pizzaThe Hangover 2 ... A Scottish take on pizza

Sea shanty icon Nathan Evans replied to the post saying “That pizza looks RIDICULOUSLY good!” while Jai McDowall said: “I mean I know I’d be in a good coma after but also that looks amazing and I want it…”

Compston announced he would be presenting the BBC show about Scotland last month.

The Scottish actor said he had been learning Gaelic for the upcoming programme.

At the Glasgow Film Festival in March, The National asked the Sweet Sixteens star to show off his newly acquired skill.

The actor then said "is mise Martin. Is toigh leam Irn Bru. Tha mi à Alba" which translates to “I'm Martin. I like Irn Bru. I am from Scotland."

He added that he recently found the expression "càite bheil an teine?" which means “where’s the fire?” which he said, “cracked me up”.

“I’m getting there,” he said. “I thought when I started it would be something that’s in my blood somewhere along the lines and it’ll come easy and it’s definitely not easy.

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“But I’m enjoying it. It's just something that’s become a bit of a hobby. I’m excited to do it and hopefully it gets better as we go along.”

Speaking last month about his upcoming documentary, Compston said: "I've travelled all over the country for work and leisure - but this is the first time I'll be meeting real modern Scots on camera, sharing their thoughts and passions.

"We're excited to get stuck in, and to experience the best that Scotland has to offer in the 21st century."