That percentage is unusually high for an auction of this kind and indicates the strength of the vintage film poster market.

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The value of a film poster is based on the fame of the films and actors, rarity, good condition and design impact.

WSJ: Posters of the Big Screen

English director Colin Nutley cast her in the lead of his movie Black Jack in 1990 after spotting her on a film poster.

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Last December's Christie's auction in Los Angeles featured one lot that seemed irresistible: a poster for a film of a concert by Blue Oyster Cult and Black Sabbath, two out-of-work heavy-metal rock bands that still stubbornly sell old records to adoring fans.

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People sign up to take part and on the day nominations are announced, names are drawn out of a hat and people are split into teams of 13 - the team leader then picks an envelope containing a poster of which film they will be parodying.

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He made up a movie poster for the fictitious film, and even took out ads in Hollywood trade papers, announcing the production.

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Thematically speaking, the film is pretty overt about its subtext, putting it right there on the poster.

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Whilst acknowledging that he could understand why the poster had caused uproar, he added that he hoped the real debate would be over the film.

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