Heart of the Sun / Rock City - Sounds of the City
Two different music documentaries directed by Peter Clifton (1973/1974)
The films contain live footge of Pink Floyd performing Careful With That Axe, Eugene and Set The Controls For The Heart Of The Sun.
The Pink Floyd footage is available on The Early Years 1965-1972 - Vol. 6 1972 Obfuscation.
Filmed by Peter Whitehead.