Actress Nicole Kidman says she loves playing the villain in movies because as a child, she was `happiest` pretending to be a villain.

`I was the kid who loved the wicked witch in 'The Wizard of Oz'. So, of course, I grew up to be the girl who wants to play the villain in a movie. I'm always happy to play the bad girl,` she told the Daily Telegraph newspaper.

Kidman voiced the evil Millicent in the forthcoming film `Paddington`, which is directed by Paul King.

`I know all about 'Paddington'. I had a teddy bear but I also had a paddington Bear. I remember being about six or seven and just hoping I would find my own little paddington stranded on the street,` she said.

The film, which also stars Julie Walters, Hugh Bonneville and Peter Capaldi, is based on the novels by Michael Bond.