I've seen David Lean's version, this version and studied (briefly) the life of Pasternak under the Communists. For some reason I can't find a Russian version of this novel - maybe some predjudice still lingers in the FSU. Of all the characters in this novel, Pasternak's favorite isn't Yuri - it's Lara. Maybe Winston Churchchill wasn't talking so much about Mother Russia as he was about her women (there's a reason they call it the Motherland). Russia is an impenetrable mystery, impossible to summarise in a few words and women such as Lara are very difficult to portray for a non-Russian. So don't be surprised if Keira Knightley doesn't seem to have captured the essence of Lara - in fact, she does quite a competent job, probably because of Julie Christie before her. The one quality that Christie had and which is reflected in Knightley is a quiet acceptance of fate (in Russian "sydba"). It's a quality that is very attractive and also the most irritating aspect of Lara. You want to yell at her to kick Komarovsky between the legs but she just soldiers on. Julie Christie , however, captured Lara in one look in David Lean's movie - when Omar Shariff enjoins her to go with Komarovsky and without a word, she looks back at Omar/Yuri with a wordless plea. Knightley's Lara is more forthright, more self assured and in that respect she is faithful to Pasternak's writing. But Christie - and that one look- will always be Lara to me.