Cléo de 5 à 7
I watched Cléo de 5 à 7 (lovely French film, set in 1962 Paris) today. All I can think about is this dress. Look at that swingy silhouette. Look at those contrasting pleats. Il faut que j'aie cette robe, tout simplement.
And I wouldn't say no to a platinum blonde pageboy, either.
Postscript: I was confused by the title vs. the plot, since I'd learned that a cinq à sept was a euphemism for French businessmen stopping by their mistresses' apartments before going home to their wives on a weekday. But in Cléo it just literally follows her from 5:00 to 7:00 in the evening. So there's that.