Both Bono and guitarist The Edge were on the red carpet, for the opening night of the annual 11-day event.

More photos here.

‘High and lows’

The U2 documentary examines the making of the Irish rock band’s 1991 album Achtung Baby in Berlin.

The seminal album, which followed on from their successful 1987 album, Joshua Tree, and the less well-received Rattle and Hum, was credited with reinventing the band.

“It was them at their very highest highs and their very lowest lows,” director Davis Guggenheim told Reuters.

U2 approached him to make a film, after The Edge appeared in his 2008 documentary, It Might Get Loud, about the history of the electric guitar.

“I think it’s not a movie about us, per se, it’s really about how bands function, or in this case, don’t function,” said the Edge, on Thursday.

“I don’t know why anyone would watch it, I really don’t,” added Bono.

Source: BBC News