Music documentaries are nothing rare, but ones as thorough as Coldplay’s forthcoming A Head Full of Dreams are.

The band have been plugging away for 20 years now, and throughout all of that time filmmaker Mat Whitecross has been hanging around, filming away.

The longtime Coldplay collaborator, who also gave us the rather excellent Oasis: Supersonic doco, was there from the band’s first rehearsal, and has somehow condensed 20 years of stuff into a standard-length movie.

Regardless of whether you’re a fan or not, even the trailer is quite fascinating – plus you get to see Chris Martin with braces!

A Head Full of Dreams will have a cinema run from November 14.

Catch up with 20 years of Coldplay at JB Hi-Fi.