<p>Anson Boon says it was "very chaotic" when he took to the stage as Johnny Rotten in Danny Boyle's Sex Pistols drama Pistol.</p><p>The actors playing the 1970s punk band performed for real in sweaty performances on set, channelling the real anarchy of the band's intense, short-lived reign at the summit of the music business.</p><p>Boon told Yahoo Entertainment UK that this atmosphere extended to the band being pelted with debris, particularly when shooting the Pistols' ill-fated tour of America.</p>
