Sexy Kate Moss pictures crash website

In the four-minute movies, which will be released over a period of weeks on the firm's website, Miss Moss can be seen in various states of undress acting out a dream sequence.

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The film marks the first time Miss Moss has taken a speaking part on film - though she did recently speak on a television advert for Virgin mobile.

In the accompanying voice-over for the first film Miss Moss's dulcet Croydon tones can be heard saying: "That was such a strange dream. I was in this big, empty house. I was lying on the floor and there was a chalk mark around my body - like in a crime scene. I got up, but it was like I floated up. My body was weightless. "I could hear the sound of the sea, big waves crashing, and I could also hear some music somewhere, like someone was having a party.

"The music was coming from one of the rooms. One of the doors opened and a woman came out. 'You're Miss X, right?'"

And so the monologue goes on.

In the third movie, Miss Moss actually strips bare. The films, made over two nights in a mansion in London's Portland Place, are directed by movie veteran Mike Figgis, maker of Leaving Las Vegas.

"She was insecure about her voice. But she's got a nice voice," said Figgis.

Miss Moss, 32, has never been shy about taking off her clothes, playing on her sexualised image throughout her career.

So far, her most risque part has been a Sofia Coppola-directed video for the White Stripes, in which she was a lap dancer sliding provocatively - and convincingly - around a pole.

The company's website crashed yesterday after thousands logged on to see the first of the four films.