Diane, who's starred in various films including Inglourious Basterds, Troy and The Host totally split opinions on the red carpet in this black, lace-up garb...
We have to admit, the jury's still out at Reveal because, while we love the top half, we'd have preferred a skinny leg and a much sexier, pointed heel.
But to be fair, we've moved on, because check out that barnet!
From the front, Diane's hair looked like it could have simply been swept up in a chic bun or French pleat, but when we got a glimpse of the sides, it was a whole different story.
Ooh, there's all manner of plaits going on back there – and we like!
To copy Diane's look, first side-part the front of your hair and keep this fringe area loose.
Next, simply section off the back into 3-4 pieces and loosely French braid each section until the whole back of your head has been plaited.
Don't worry if your plaits are a little messy, the more dishevelled they look, the better.
When you get to the ends, secure each plait with a band, then tuck this under your hair somewhere and hide it with a few Kirby grips.
To finish, use your fingers to twist the front section together into one soft wave at the ends, then spritz all over with a little light hairspray.
We love Silvikrin Gold Brilliant Shine & Hold Hairspray, £3.49, boots.com.
What do you think of Diane's sexy braids? Let us know your thoughts below. Don't forget, our fave comment across the site each week wins £50!
Fargo stars Martin Freeman and Billy Bob Thornton and premieres in the US on FX, 15 April. Don't worry though, we're getting it on Channel 4, 20 April – whoop! In the meantime, catch the trailer here.
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