Oscars 2017: Warren Beatty's son defends him for Midnight-La La Land mix-up

Beatty was announcing the final award onstage with Faye Dunaway, in a Bonnie and Clyde reunion

Legendary actor Warren Beatty's son Stephen Ira has defended his father's mix-up while presenting the best picture Oscar at this year's Academy Awards, saying "mistakes happen at live shows".

The bizarre incidents took place at the end of the gala night when La La Land, which won six trophies, including best director and actress, was incorrectly declared the best picture winner by Beatty and Faye Dunaway at the ceremony.

"Proud of my dad for his grace! It's live, stuff happens. Showbiz!" Ira tweeted.

In a later tweet, he wrote, "I think it was just a mix up! Mistakes happen, especially in a live show."

Beatty was announcing the final award onstage with Dunaway, in a Bonnie and Clyde reunion, when he seemed to pause after opening the envelope.

He exchanged a look with Dunaway, who then took the card and announced La La Land as the winner.

However, during their victory speech, one of the musical's producers, Jordan Horowitz, realised the mistake and announced that the award actually belonged to Moonlight.