In a sign of her major impact on '60s culture, Time magazine wrote, "What Julie Christie wears has more real impact on fashion than all the clothes of the ten Best-Dressed women combined," in 1967.

When film fans think about the swinging Sixties in cinema, it tends to be with almost Austin Powers-esque nostalgia. One remembers the Beatles gaily dashing about in A Hard Day’s Night, Sean Connery’s ...