First, she warmly embraced Schreiber on stage.
"Here's the most generous, extraordinary and the greatest American actor right there, and I was so lucky to be married to him on screen," she said, before passing a glass of milk to the actor.
Kidman continued her acceptance speech in the usual fashion, before things took an unexpected turn.
"And now, I just want to say, anyone who wants to join me, please," she said, motioning to Schreiber to return the glass to her hand...