‘Holy grail’ footage of David Bowie at his peak to feature in immersive London show

Earl's Court performance of Heroes in 1978 is among highlights of exhibition exploring singer's life and work

Rare holy grail" footage of David Bowie performing Heroes at Earl's Court in 1978 is to feature in a new immersive show about the singer's life and creative practice.

Extended footage of the performance has been pieced back together by the team behind the new Lightroom exhibition, who had access to new camera angles found on film reels discovered in the artist's archives.