Hybrid doc at the start, with Chumba Dunstan angry at home, a washed-up ex-punk. Without any musical outlet, they try reenacting scenes from other movies where people are angry. Then he calls up the rest of Chumba one by one and starts excavating the band’s roots. Mekons’ “Where Were You” represents the advent of British punk as he moved to Leeds. “We wanted to shout like Crass, and then we wanted it to sound like The Beatles,” referencing the band’s blend of anger, cynicism and fun. They re-enact band arguments about signing to a major label. Finally all band members together, or as many as he could find, they watch their notorious Brit Awards performance together, where they changed the lyrics and dumped an ice bucket on a politician. It gets a bit too promotional on Dunstan’s new band Interrobang, but I’ll check them out. Some words of hope from Penny of Crass and Ken Loach, last-minute inclusion of They Might Be Giants’ “Tubthumping” cover, overall not bad.