The PwC statement in full

“PWC takes full responsibility for the series of mistakes and breaches of established protocols during last night’s Oscars. PwC partner Brian Cullinan mistakenly handed the back-up envelope for Actress in a Leading Role instead of the envelope for Best Picture to presenters Warren Beatty and Faye Dunaway. Once the error occurred, protocols for correcting it were not followed through quickly enough by Mr Cullinan or his partner.

“We are deeply sorry for the disappointment suffered by the cast and crew of ‘La La Land’ and ‘Moonlight’. We sincerely apologize to Warren Beatty, Faye Dunaway, Jimmy Kimmel, ABC, and the Academy, none of whom was at fault for last night’s errors. We wish to extend our deepest gratitude to each of them for the graciousness they displayed during such a difficult moment.

“For the past 83 years, the Academy has entrusted PwC with the integrity of the awards process during the ceremony, and [on Sunday] night we failed the Academy.”