One-time Chumbawamba frontman Dunstan Bruce’s cheerful and unrepentantly radical film memoir scores highest when nostalgically raking over Bruce’s anarcho-pop past with his ‘Tubthumping’ chums. Their journey from a Leeds squat to chart-topping, politician-soaking squabblers is a wild ride, richly stuffed with archive footage. But Bruce’s inclusion of narcissistic art-school-style stunts gets tedious pretty quickly. And only hardcore fans will sing and dance at the inclusion of his shouty new pensioner-punk band, Interrobang.