BEIJING, July 4 (Xinhuanet) -- Actress Keira Knightley has denied media reports of weight problems at London's premiere of Pirates of the Caribbean: Dead Man's Chest on Monday night.

    Defending her appearance, the 21-year-old said: "Whatever people say about my weight they are all wrong."

    "Hollywood is all about the way you look, and I don't think that's the healthy thing for anyone. But, if you're strong and comfortable with yourself, then you're going to be fine," she added.

    Adorned in vintage Cartier jewelry and a low-cut, backless bronze Gucci dress slashed to the waist, Knightley was happy to be back in her hometown. "We had such a good response in the U.S., but I'm a London girl ¨C so it's always special to do a premiere here," she said.

    Knightley, who is on a worldwide tour promoting the sequel, revealed to America's New York Daily News newspaper that she almost turned down a part in Pirates Of The Caribbean. The actress says the fact the film was based on a theme park ride put her off.

    She said: "I was like, 'Wait a minute, you're doing a pirate movie, something that hasn't worked in about 50 years, and it's based on an amusement park ride?!"

    "Orlando and I were sitting next to each other at the prmiere, which was the first time I'd seen it, and we'd had a big talk and decided that if it was awful, we'd still leave the theatre all smiles.

    "Halfway through the film, I nudged him and said, 'It's quite good, isn't it?' and he was like, 'Yeah, it's really good'. We had no idea it would work."

    The first movie, "Pirates of the Caribbean: The Curse of the Black Pearl", eventually made $650 million worldwide.

    The second film opens this month, while a third instalment - tentatively titled 'Worlds End' - is due for release next year.Enditem

    (Agencies)