When it comes to cinema, some shoes are notoriously difficult to fill, even for the most talented performers. Vivien Leigh, one of the greatest actresses of the 1940s, found herself in such a predicament when taking on the iconic role that had previously been immortalised by the legendary Greta Garbo in not one, but two iconic films. That role was the heroine of *Anna Karenina*, the 1948 British film directed by Jul…