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Accordionist MacLean believed they were at a gig where he received numerous requests from Scotland football fans to play Flower of Scotland, but cheekily responded with an eight-minute version of Three Lions.

MacLean was contacted in April last year about being in the film.

Maclean is a fan of Boyle's original movie and said being part of the third instalment was "exciting".

Maclean has had a busy year, having already appeared on ITV show Britain's Got Talent.

Ruairidh MacLean, who is from Ullapool and performs as RuMac, is not allowed to speak about the scene he appears in, but is understood to involve a party.