Watch Sky Above and Mud Beneath

Thor Heyerdahl’s own 16mm footage of the balsa raft that drifted from Peru to Polynesia in 1947.

Operation Highjump: four thousand American servicemen and thirteen ships sent to map Antarctica in 1946.

Cousteau and Louis Malle invent the underwater documentary, in colour, from aboard the Calypso.

Cousteau’s Conshelf II: six men living for a month in a steel house on the floor of the Red Sea.

Six weeks with an American platoon in Vietnam, filmed by Pierre Schoendoerffer, who had been a prisoner at Dien Bien Phu.

Two South Africans hunt for Rodriguez, a Detroit singer they think is dead.

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

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