Watch Searching for Sugar Man

Amy Winehouse in home videos and voicemails; Asif Kapadia's archive method again.

The pianist at eighty, playing and talking, filmed across Europe and America.

A diver visits the same octopus every day for a year in a South African kelp forest.

Philippe Petit walks a wire between the Twin Towers in 1974, told as a heist.

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.

Helen Keller at seventy-four, filmed at home and narrated by Katharine Cornell.

The Nobel laureate at his hospital in Lambarene, filmed in Gabon in his eighties.