Watch The Thin Blue Line

Robert McNamara's eleven lessons on Vietnam and Cuba; Errol Morris's Interrotron interview.

Dealey Plaza and the Sixth Floor Museum, the Arts District and Texas barbecue.

Matthew McConaughey as a Texan smuggling AIDS drugs in 1985; he and Jared Leto both won Oscars.

A cyclist tries doping and stumbles into the Russian state programme; his source flees to LA.

Robert Durst on a hot mic: "killed them all, of course"; the true-crime series that solved a case.

Steven Avery, exonerated then convicted again; the series that made true crime a Netflix genre.

Eight hours on Simpson, race and Los Angeles; the documentary that won an Oscar as a film.

Alexei Navalny phones his own poisoner; the documentary made before his death.