A HOLLYWOOD star looked completely unrecognisable after going blonde on the set of an upcoming blockbuster.

The streets of Glasgow have been transformed for the filming of new sci-fi movie Ghostwriter.

Filming of "Ghostwriter" in Glasgow, Scotland.

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Glasgow has been transformed for the filmingCredit: AlamyFilm production vehicles on a flatbed truck.

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Ghostwriter has been filmed in the city for the past weekCredit: Michael SchofieldTwo cranes lifting large black screens in front of a building.

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Bothwell Street has seen a lot of filming take placeCredit: Michael Schofield

Parts of the city centre have been turned into the scenes from the fictional world of the movie, directed by JJ Abrams.

Shop fronts have been sporting a funky new look for the movie while futuristic cars were driven along the street.

Cinema fans have been out in force to try and catch a glimpse of some of the stars.

Hollywood hunk Glen Powell has already been spotted around the city filming scenes.

But one of his fellow big stars was out and about filming last night.

Wednesday star Jenna Ortega, 22, is also starring in the movie.

But she looked worlds away from her gothic Addams family persona while in Glasgow.

She sported a blonde hairstyle and a leopard print long coat and she was seen kicking about the set.

Bothwell Street and Blythswood Street were both closed last night and today as overnight scenes were filmed.

Other scenes have been filmed underneath the city’s Kingston Bridge and in Edinburgh city centre.

Scots streets transformed for huge blockbuster as A-listers JJ Abrams and Glen Powell spotted

The movie mania is set to come to a close in Glasgow as Ghostwriter filming is predicted to end early next week.

But that doesn’t mean the stars haven’t taken a chance to enjoy some of what the city has to offer.

Ghostwriters filmmaker JJ Abrams decided to head a few streets away from the set to enjoy a meal at a local restaurant, who were more than overjoyed to have the Star Wars director along for a bite to eat.

Jenna Ortega leaving the set of the film "Ghostwriter" in Glasgow.

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Jenna Ortega looked worlds away from her Addams family personaCredit: Wattie CheungJenna Ortega leaving the set of the film "Ghostwriter" in Glasgow.

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She sported blonde hair and a leopard print coatCredit: Wattie Cheung

Meanwhile Twisters star Powell posed for a pic with fans at a Glasgow cinema as he got into the movie mood.

Ghostwriter is set to be released next year and will follow an author who reveals the fictional world he created is actually real.

It is also said to also star Hollywood legend Samuel L Jackson.

Filming of Ghostwriter in Glasgow, Scotland.

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Movie mania has gripped the cityCredit: Alamy