I recently rented this film and I fell in love with it - all of it. It really struck me visually, plus it's an interesting film and just all around good. Carey Mulligan is a modern day Audrey Hepburn.
I highly recommend sitting down with a glass of wine and enjoying all the lovely fashions of Miss Mulligan and Rosamund Pike. But I must warn you - it just may make you want to put on some pearls and French music and smoke cigarettes.