Mostly standard talking-heads rise-and-fall music doc. Sometimes the interviewees address the subtitle topic, sometimes they use a deep-1980s Sly interview, sometimes there’s concert footage, and all those things are very good. Surprisingly given all the past-tense involved, Sly really does live (update: RIP Sly).

The opening mashup is as good as people said, then between each ad break they pick a particular focus: Lonely Island, hip hop, star-making performances, the dangers(?) of live television. They take pains to tell us what an honor it is to play such an important show, how vital is SNL to our culture, and if you don’t agree with this premise then it all starts to feel hollowly self-promotional, but there’s sure some good music along the way.

Superbly assembled from the original footage, news stories and present-day interviews. Some songs are allowed to stand on their own, some are used as montage fodder, or backdrops for related stories. Mainly I appreciate a music doc that never lets the music stop playing.

Stevie Wonder gets drum and piano solos. David Ruffin has a very high voice and long legs on “My Girl.” Nina Simone and Sly Stone in top form. I wasn’t expecting the gospel section to be so strong – Mavis Staples and Mahalia Jackson walked off with the movie.

Abby Sun in Filmmaker:

Politically, the films’ interviews and archival footage holds no bars. The Reverend Jesse Jackson’s sermons are woven throughout … The film is explicitly pro-Black Panthers, pro-Young Lords, pro-interracial and transnational solidarity movements. It is conscious, as its organizers were, of the complex mapping of the formation of Black identity — in style and hair, musical expression and commercial ownership, political position, Afro-Caribbean modalities — and against mainstream media narratives, while putting forward a multi-sensorial view of a festival space, integrating attendees’ memories of the smell and taste of being present.