Both ladies turned up on the red carpet last night doing a bit of what has become known in the trade as an, er, Angelina Jolie.
Angelina was famously mocked last year when she turned up on the red carpet rather awkwardly, forcibly poking her leg out of a floor length Versace gown.
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And very much following in the famous footsteps of Angelina's right leg, Halle and Eva were the ones flashing a bit of thigh this year.
Which leaves one question: Who Jolie'd it better?
Well, to be fair, they both have gorgeous A-lister pins, so is it any wonder they fancy showing them off to the world?
Eva popped her leg out of a gorge black lace Pucci dress on the red carpet with a slit cut up to her hip.
While Halle opted for this cutaway, printed gown which is already being judged as one of last night's least successful red carpet looks by fashion types.
However, we think you could shove Halle's amazing figure in pretty much anything and she would look nothing less than stunning.
Plus, it seems that we have ourselves a bit of a Hollywood trend, after Rosie Huntingdon-Whiteley and Miranda Kerr also got in on the leg flashing action.