DiCaprio was cool as cucumber after winning Oscar: Robbie

Leonardo DiCaprio was laid-back after winning his best actor Oscar, according to his "Wolf of Wall Street" star Margot Robbie.

The 41-year-old star won the coveted trophy for his role of revenge-seeking fur trapper in "The Revenant".

"He's usually just cool as a cucumber, he was really chill," Robbie told People magazine.

The actress said seeing the actor on the stage was a memorable moment.

"I screamed. I literally screamed," Robbie said, adding "Everyone was beside themselves, no one would sit down, just kept clapping as he was doing his speech. It was an amazing moment.