INTERVIEW: Jimmy Page, Robert Plant on what fantasy sequence would portray them in this film if they did one at Led Zeppelin Celebration Day Press Conference on September 21, 2012 in London, England (Footage by WireImage Video/Getty Images)

INTERVIEW: Jimmy Page on where the idea for the film came from at Led Zeppelin Celebration Day Press Conference on September 21, 2012 in London, England (Footage by WireImage Video/Getty Images)

INTERVIEW: Robert Plant, Jimmy Page on if they had to correct any of their songs at the O2 at Led Zeppelin Celebration Day Press Conference on September 21, 2012 in London, England (Footage by WireImage Video/Getty Images)

John Paul Jones, Robert Plant, Jimmy Page at Led Zeppelin Celebration Day Press Conference on September 21, 2012 in London, England (Footage by WireImage Video/Getty Images)

INTERVIEW: Jimmy Page on if it was more fun when they were younger at Led Zeppelin Celebration Day Press Conference on September 21, 2012 in London, England (Footage by WireImage Video/Getty Images)

INTERVIEW: Jimmy Page, John Paul Jones on the first time they played together in rehearsals. Robert Plant, Jimmy Page on the first thing they played in the rehearsal for the O2 gig at Led Zeppelin Celebration Day Press Conference on...

INTERVIEW: Jimmy Page asking the audience if they enjoyed the film at Led Zeppelin Celebration Day Press Conference on September 21, 2012 in London, England (Footage by WireImage Video/Getty Images)

Robert Plant at Led Zeppelin Celebration Day Press Conference on September 21, 2012 in London, England (Footage by WireImage Video/Getty Images)

Jimmy Page, Robert Plant, John Paul Jones at Led Zeppelin Celebration Day Press Conference on September 21, 2012 in London, England (Footage by WireImage Video/Getty Images)

John Paul Jones, Robert Plant, Jimmy Page at Led Zeppelin Celebration Day Press Conference on September 21, 2012 in London, England (Footage by WireImage Video/Getty Images)

INTERVIEW: Jimmy Page on John Varvatos, fashion style of rock stars these days, his plans for the future and Robert Plant talking about Led Zeppelin getting back together at John Varvatos -European Store Launch on September 03, 2014 in...

Jimmy Page, Led Zeppelin at the Mojo Honours List at London . (Footage by WireImage Video/GettyImages)

Led Zeppelin, John Paul Jones, Paul Jones, John Paul at the Mojo Honours List at London . (Footage by WireImage Video/GettyImages)

GettyImages Celebrity News: 10/17/12 on October 17, 2012 in Hollywood, California (Footage by WireImage Video/Getty Images)

Marnie Stern on free music, exposure, buzz bands, fans, fan loyalty, and Led Zeppelin. Produced by Uncensored Interview / ZenCat Productions. Marnie Stern Interview (clip 5) on October 06, 2008 in New York, New York (Footage by...

Juliana Hatfield on sexism, music, songwriting, inspiration, Led Zeppelin, Paul Westerberg and Chrissie Hynde. Produced by Uncensored Interview / ZenCat Productions. Juliana Hatfield Interview (clip 12) on May 22, 2008 in New York, New...

The Futureheads on America, U.S., scene, U.K., Britain, holy grail, tours, live performance, Led Zeppelin and dream. Produced by Uncensored Interview / ZenCat Productions. The Futureheads Interview (clip 1) on June 18, 2008 in New York,...

<< CLEAN: Exterior shots of the closed Crown pub in Birmingham, where Black Sabbath played their first gig and were among regulars including Status Quo and Led Zeppelin during the 1960's. >> on February 04, 2017 in Birmingham, England.

Jimmy Page talks about Celebration Day lineup at MOMA on October 09, 2012 in New York, NY (Footage by WireImage Video/Getty Images)

Jason Bonham talks about Celebration Day movie at MOMA on October 09, 2012 in New York, NY (Footage by WireImage Video/Getty Images)

Led Zeppelin poses for photos for Celebration Day at MOMA on October 09, 2012 in New York, NY (Footage by WireImage Video/Getty Images)

Led Zeppelin's Robert Plant talks of concert video at MOMA on October 09, 2012 in New York, NY (Footage by WireImage Video/Getty Images)

Jimmy Page at National Portrait Gallery on September 24, 2018 in London, England.

Jimmy Page at National Portrait Gallery on September 24, 2018 in London, England.