Sienna Miller shuts down Page Six's story that she was flirting with Brad Pitt at Lost City Of Z premiere

Earlier this week Page Six reported that Brad Pitt and Sienna Miller seemed super into each other at The Lost City Of Z premiere in LA. It’s a good story. A good old-fashioned gossip story. Two very attractive celebrities flirting at a party doesn’t mean marriage. But it gives us possibility. Pos...