'They always said 'No': Why Led Zeppelin's surviving members agreed to a documentary
Despite having shut down legions of authors and filmmakers interested in their story, the members of Led Zeppelin said yes to Bernard MacMahon. Why?
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Led Zeppelin Documentary Makers Had To Pass This Jimmy Page Test Before They Could Make the Film
Led Zeppelin documentary makers had to pass these two tests from guitarist Jimmy Page before they got his approval.