If you dander past Little Donegall Street in Belfast over the next few days and wonder if you have stepped back in time, don’t fret, it’s not the 1980s — despite the obvious reference.

Yesterday passers-by were intrigued by the appearance of a massive poster advertising the release of arguably U2’s greatest album, The Joshua Tree.

The iconic image of a very young, sombre-looking group of lads from Dublin has been mounted across the front of the Frames complex, with two side banners heralding the release of the band’s fifth studio album.

Of course, The Joshua Tree was released in 1987. So why the advertisement? Well, the poster (and Little Donegall Street) is part of a scene from music comedy Killing Bono, being filmed in Belfast.

The movie, which stars Ben Barnes from Chronicles Of Narnia fame and Channel 4 ‘Misfit’ Robert Sheehan, is based on a book written by Neil McCormick, who went to school with U2 frontman Bono.

I Was Bono's Doppelganger tells the story of McCormick and his brother Ivan’s attempt to forge a career in the music industry during the 1970s. But the pair fail to find success, while Bono and Co went on to achieve superstar status.

The last day of filming is tomorrow. There will be a night shoot from 8pm - 5am outside Frames on Library Street. and if you want to be part of it as an extra just go along in 80's fashion. Text 07792490926 with your full name to confirm you're going. Remember its outside so wear sensible clothing.