were, at their peak, a formidable live act. As new documentary demonstrates, the band fused different sounds to create a formidable rock brew, conquering the world in the process.

Yet the four-piece could also be their worst critics. A five-night run in 1975 saw Led Zeppelin take control of cavernous London venue Earls Court, becoming one of the first bands to play in this enormous space. Hugely ambitious, it utilised the latest technology, including live footage of the show being played on huge, state-of-the-art screens.

Lauded by critics, the Earls Court residency went down in rock history – except singer Robert Plant had a a few issues.

Looking back on the concerts in a 1982 interview with , the singer called the sound “horrendous” and thanked fans for pulling the band through.

 “There was a kind of furious momentum about that whole gig that pulled us through,” he said.

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Perhaps the sheer scale of the shows were what irked Robert Plant – he’s in favour of smaller, more intimate spaces, and disliked the epic nature of what Led Zeppelin became.

“I can’t play places like Birmingham NEC,” in the 1982 interview. “The only group I’ve seen come over reasonably well there was Dire Straits, and I’ve seen quite a few people, including Dylan, David Bowie and Foreigner. That size of a gig is a little out of order now, in Britain at least.”

The footage from Led Zeppelin’s 1975 shows in Earls Court went unreleased for three decades, before finally emerging on

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