HARRY POTTER wizard Natalia Tena almost sparked a riot at T in the Park while filming her latest movie, Email can reveal.
Natalia - Tonks in the blockbuster movies - was shooting a scene on the main stage along with co-star Luke Treadaway.
And she couldn’t stop him yelling “Hello, T in the Park” into a live mic.
Treadaway’s impromptu outburst caused fans to think they were missing an act and they raced to the stage.
A T insider said: “Treadaway had been told that when they got on stage to film that they should not say anything over the mic … but that’s exactly what he did.
“Scores of fans came swarming from the campsite to see what they might be missing.”
Director David Mackenzie filmed his new romantic comedy at the Perthshire festival.
Clash Of The Titans star Treadaway, 25, plays the lead singer of a struggling Scottish indie band.
His character, Adam, gets handcuffed for 24 hours to the lead singer of a big US rock outfit, who is played by the 25-year-old Tena.
The feuding pair have to perform in each other’s sets live on stage.
Mackenzie shot the feature in just five days and it’s due for release next year.
Casting director Kathleen Crawford said: “We met some incredibly talented actors for all of the parts and were really lucky to fill all the roles with David’s first choices.
“We had around eight weeks to do the casting in all, while David was in post-production for his last film.
“We cast our final roles on July 3, just in time for the read-through two days later. But even if we’d had another three months, we’d have the same cast - they are brilliant.”
The crew brought their own extras to make sure they didn’t end up with a crowd of drunk fans.
She added: “We realised that without our own extras on site, we’d probably find ourselves stuck wrangling with sobriety-challenged festival-goers at all hours.”
The film is being made by Glasgow-based Sigma Films, with BBC backing.
Hallam Foe director Mackenzie has just finished editing Perfect Sense, which stars Ewan McGregor and James Bond actress Eva Green.
Thanks Guest who sent us a pic of Nat performing at the Harry Potter wrap party earlier this week:

. . . the last word on music MUST go to Natalia and her band who were simply fantastic. The rain poured down but the guests who were dancing outside in it could not have cared less, what a singer She is!! And also talented on a good few instruments by the sound of it. A great second career She has.…{hp4u.co.uk}
Speaking of Potter, there are some photos out of the boy who plays Teddy Tonks (Tonks’ and Lupin’s son) in the Deathly Hallows epilogue — Luke Newberry @ ohnotheydidnt.
Another one of Natalia’s films, “Womb”, premiered at the Locarnno International Film Festival in Switzerland last week. Nat wasn’t in attendance, but the film has been getting great response!
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