Warren Beatty and Faye Dunaway were reportedly feuding prior to the Oscars fiasco.
Faye Dunaway and Warren Beatty
The 79-year-old actor and the 76-year-old actress were apparently squabbling between themselves during rehearsals before they mistakenly presented the Best Picture gong to 'La La Land' rather than 'Moonlight' at the Academy Awards on Sunday (26.02.17).
A source claimed Warren "refused to let his rehearsal be filmed, which they needed to block out the entire show properly".
The insider explained that he subsequently walked off, "leaving Dunaway to do the entire rehearsal herself ... He left once he was told it was to be televised for studio blocking and other telecast needs."
What's more, it's been claimed that the Hollywood duo bickered between themselves over who would announce the award winner on the night.
The insider told the New York Post newspaper's Page Six column: "It is no secret that there is no love lost there. Both nearly balked at doing it together at all."
Following the awards ceremony in Los Angeles, 'La La Land' star Emma Stone said she considers the Oscars fiasco to be one of the "most horrible moments" of her life.
The flame-haired beauty was named Best Actress for her lead role in the drama, but admitted her night was tarnished by the Best Picture farce.
The 28-year-old star said the embarrassing gaffe was: "One of the most horrible moments of my life. Wow! It was just so horrible."
By contrast, Jimmy Kimmel - who presented the awards ceremony at the Dolby Theatre - said he was "trying really hard not to laugh" during the incident.
He shared: "[It] is unusual, but you figure, 'Well, the host will go onstage and clear this up.' And then I remembered, 'Oh! I'm the host!'
"... Now so we have the producers of two movies on stage. Who the hell even knows who is who from which movie?
"I'm standing there [on stage] like an idiot, feeling bad for these guys, but also trying really hard not to laugh, to be honest."
Tagged in Faye Dunaway Warren Beatty Emma Stone