"Someone said 'a billion people watch this' and I thought, 'Oh my god, it's not like doing a movie where you get a second or third take'. Everyone's watching every word that you say. That was my initial reaction to it. It's a nerve-wracking thought," DiCaprio added.
The actor has been nominated for best actor for Martin Scorsese's "The Wolf of Wall Street" at the Oscars this year.
