Original filming The plans to film the shows at Madison Square Garden were threatened when the local trades union tried to block the British film crew from working. After the band's attorneys negotiated with the union, the crew was allowed to film the concerts.Welch, Chris (2002) Peter Grant: The Man Who Led Zeppelin, London: Omnibus Press. , pp. 112-138.
Original filming The plans to film the shows at Madison Square Garden were threatened when the local trades union tried to block the British film crew from working After the band's attorneys negotiated with the union the crew was allowed to film the concertsWelch Chris (2002) Peter Grant The Man Who Led Zeppelin London Omnibus Press  pp 112-138