The making of the Third Man: A film noir classic

In 1948, filming began on a post-war thriller that would become one of the greatest British movies of all time.

Directed by Sir Carol Reed, the film captured the atmosphere of a divided, ruined Vienna.

But much of its lasting power lies with Orson Welles, whose magnetic, menacing turn as Harry Lime stole the show - despite his limited screen time and reputation for being famously hard to pin down.

Phil Jones speaks to production assistant Angela Allen about the film that became legend.

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(Photo: Harry Lime, played by Orson Welles in The Third Man. Credit: Corbis via Getty Images)