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The alien model, which starred in Ridley Scott's film, is expected to fetch as much as �12,000.

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Giant photographs of rock legend David Bowie are included in the sale of pop and film memorabilia at Bonhams' Knightsbridge auction house on Tuesday.

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One of the model sheds used in the animated blockbuster Chicken Run is included in the London sale, and is expected to fetch up to �300.

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A Guns N' Roses tour jacket included in the collection has been signed by lead singer Axl Rose.

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Photos of rock stars like Bowie and the Rolling Stones' star Keith Richards are popular, but fail to attract the high price of Beatles images.

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Models from James Bond films and other blockbusters are "part of a dying art", says memorabilia expert Stephen Maycock.

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Models from the original Star Wars trilogy are a rare treat for film collectors.

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The Terminator 3 costumes represent the latest blockbuster props to join the modern collectables market.