As well as selling works by 20th-century artists such as Man Ray, Alexander Calder and Keith Haring, Ms. Guinness also commissions contemporary artists to design for her.

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One of his colour pictures shows Naomi Savage, his one-time assistant who developed her own career as a photographer, and no doubt inspired by Man Ray, also invented a process called photographic engraving.

BBC: Man Ray's portraits go on show

It's a modern-day Western -- a souped-up and dumbed-down "Rio Bravo, " if you will -- with Schwarzenegger making like John Wayne as border town Sheriff Ray Owens, the last man standing between a runaway bad guy (Mexican drug baron Eduardo Noreiga) and his freedom.

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His influence went far and wide, with photographers such as Bernice Abbott and Bill Brandt just two of those whose vision was shaped by Man Ray.

BBC: Man Ray's portraits go on show