June 19, 2008 11:00 AM

David Moir/Reuters; PA Photos /Landov

Sienna Miller and Keira Knightley are both known for their quirky British style — so what happens when you cast them both in the same film? Not only do they become close friends, but apparently they coordinate their red carpet outfits! The stars spent their day promoting The Edge of Love at the Edinburgh Film Festival. First, they hit a photocall in matching booties and black accents. But they hit the nighttime premiere in ’30s-inspired black and white — Sienna in long fringe and a bowler hat, Keira in a Chanel jumpsuit and bolero. We can’t wait to see if the actresses keep up their red carpet team effort. Tell us: What do you think of Sienna and Keira’s paired-up looks?

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