All Kindsa Girls - was lucky to see this at a film festival, don't think its been released on DVD, some great basement Real Kids footage, and the added bonus of talking to Fifi from Teengenerate/Firestarter about how the band has influenced him
Rough Cut and Ready Dubbed - think this was made by a couple of school kids, captures that moment in the British punk scene when it was splintering into post-punk, mod revival, 2-tone, Oi!, etc. Excellent Cockney Rejects footage and a great bit where the Purple Hearts, who look about 17 years old, are talking about holding their own against the Hells Angels.
Punk in London 1977 - German documentary with lots of great live footage plus Jimmy Pursey in flares and an interview with Andy Czezowski, the other Jewish svengali behind punk.
DOA - features Terry and the Idiots, a made-up band of unemployed youth who formed only to play for the documentary, plus all the usual britpunk suspects, classic interview with scagged-out Sid and Nancy
Not Dead Yet - doc about the Toronto scene in the 80s, most of the bands are pretty bad but worth watching for Youth Youth Youth. The CBC made a follow-up to this a few years ago which was really depressing, the moral of the story seemed to be that punk will ruin your life.
Punk Can Take It - I'm not a huge fan of the UK Subs but I liked how this short film was done in the style of a wartime newsreel and shows second-wave punk going strong
40 Minutes - Skinhead - this is basically the BBC following "Nazi" Chis Henderson from Combat 84 around for 40 minutes. Great (allegedly staged) brawl at the end.
Arena - Grant's Story - documentary about Sham 69 interspersed with Quadrophenia-style re-enactments of the skits from the 'That' Life' LP. Features Grant Fleming, the guitarist of the Kidz Next Door and early Inter City Firm casual, as the protagonist. The Sham 69 live footage is electrifying, the gig is on the constant tipping-point of mass violence with an audience average aged 16.
Angry Samoans: True Documentary - not great, but whatever, its the Angry Samoans
Take Three Girls - Dolly Mixture documentary that I got to see the other week, its as twee and charming as the band.
Oil City Confidential - really enjoyable Dr. Feelgood documentary ( apart from the over-use of clips from old movies). Makes Canvey Island look like the third word.
As a few people have said here, all the BBC docs are worth watching, my favourites are If It ain't Stiff (Stiff records) and More Than This: the Roxy Music Story. I think there was a whole thread on here about these.
I once saw a black and white documentary from the early 80s about the struggle to keep a punk club open in suburban LA while it was under constant attack from cops and cowboys. Had footage of Chavo-era Black Flag. Anyone know what its called or where I could see it again?