So this actually happened…

Hollywood legends Faye Dunaway and Warren Beatty, of Bonnie and Clyde fame, called the wrong best picture.  

They called the wrong best picture.  

And left Kimmel and the losing producer to make the sad announcement. 

Look back at the footage and you’ll see the issue.  Warren has the wrong envelope:

It reads: Best Actress For a Leading Role

Emma Stone for La La Land.  

The normal procession is that the winner takes his/her statue and the envelope.  But Leo never gave Emma the envelope:

And for some reason, Warren was given her envelope.  And if you rewatch the moment, you will see him realize it.  

Then he passes the envelope to Faye who simply looked at the movie title.  Which was for Emma’s Best Actress award.