Rachel McAdams black lace midi-dress with cut-out panels at the waist is pretty, but her mega top-knot is really stealing the show for us.

The dress at first glance looks a little safe, but it is saved from being too demure with sheer panelling and skin-baring cut-outs, while the midi-length is perfectly ladylike.

The architectural hairstyle is really what's inspiring us though, and we're loving her new coppery locks too.

This look should be relatively easy to recreate at home using some kirby grips, hairspray and a simple black hairband (or bit of ribbon) to finish off the style.