Australian actress Margot Robbie feared she would be sued after she gave Hollywood actor Leonardo DiCaprio an impromptu slap during the filming of The Wolf Of Wall Street. The About Time star filmed a number of saucy sex scenes with DiCaprio for the acclaimed movie, and admits she hit him across the face as she improvised during one passionate encounter. She tells Britain's GQ magazine, "I got a little lost in the moment. I slapped his face and said, 'F**k you!' There was a stunned silence then they (the crew) all burst out laughing. I'd thought they were going to sue me. I apologised profusely but Leo said, 'That was brilliant. Hit me in the face again!'."