Sienna Ambushed!

Actress Sienna Miller was again bombarded by paparazzi in Los Angeles on Tuesday, with flashbulbs accompanied by relentless verbal assaults as she waited for an elevator to escape the madness.

Best known for her role in "Factory Girl" and for a series of high-profile relationships, she is now dating Balthazar Getty, who left his wife and four children for the starlet. The elevator ambush follows a recent run-in with photogs at LAX, where Sienna was peppered with questions about Getty.

At the airport last weekend, a pap yelled to the actress, "Sienna, are you going to see Balthazar Getty again?" Miller responded, "I work here. I'm an actress." The pap fired back, "Oh yeah? Are you an actress or a homewrecker?" Sienna then snapped, "I'm sorry you're so unhappy as a person that you feel the need to say things."

Friend Keira Knightley defended her pal. When asked, "Do you feel your friend Sienna Miller is being treated unfairly by the media?" Keira responded, "I don't think there's any question about it."

Tell "Extra" -- Did paparazzi go too far with Sienna?