Margot Robbie was worried about the repercussions of stripping off for "The Wolf of Wall Street."

The Australian actress admits she was nervous about images of her naked body ending up all over the Internet when she accepted the role of Jordan Belfort's second wife Naomi in Martin Scorsese's Oscar-nominated drama.

She told Britain's LOOK magazine: "[Nudity is] different in this day and age, because of the Internet. It was like, if I do this there will forever be YouTube clips of this, there will be slow-motion versions.

"It's not just the repercussions for myself -- my brothers and my grandparents have to deal with that. So it's not something to be taken lightly."

However, Robbie felt it was worth the risk for the role because playing Leonardo DiCaprio's on-screen wife was a once in a lifetime opportunity.

The 23-year-old beauty explained: "There are scripts I pick up and say, 'There's no reason why she's taking her clothes off, that's just stupid, it's just nudity for the sake of nudity.' That I do not agree with, ever.

"But when the nudity is warranted, I don't think there's anything shameful in that. If it's justified and the character would do it, then it should be there."

Margot insists she never had an embarrassing teenage crush on her co-star, who rose to fame in romantic blockbuster "Titanic" and the film re-imagining of Shakespeare's "Romeo and Juliet," and was actually more interested in the film's doomed namesake than the hunky lead actor.

She laughed: "I was absolutely obsessed with the "Titanic" -- not the film, the actual boat. I'd draw diagrams about it and theorise that if it was built in a different way, it wouldn't have sunk."