April 10, 2006 at 10:44AM

Sienna Miller Needs to Chiller. Out.

The upcoming issue of Vanity Fair is rumored to contain some interesting photos of Sienna Miller "cavorting drunkenly with bit-part actress Tara Summers, having her foot nibbled by her pal and hitching up her dress while waving her bare legs in the air," spurring various folks to grab their pearls and gasp about her damaged reputation. Huh. Might this have something to do with VF's latest offering being "The Green Issue", rumored to be . . . uh . . . boring? Vanity Fair, you should be ashamed at making Sienna Miller your fall guy. There's only one fall guy around here, and his name is Lee Majors. Don't you forget it.

The pictures were snapped at Vanity Fair's post-Oscar party. Sienna is English, which means she's Bridget Jonesy, which means she's like a Cathy comic, only really drunk. One tightassed eyewitness is quoted as saying Sienna was being "loud and childish", adding, "Everyone was talking about how Sienna was totally over-the-top. These pictures have seriously damaged her reputation." And a "leading producer" told UK's The Mail:

"It's one thing to be gossiped about, but it's quite another to have pictures of yourself in that kind of clinch plastered all over a magazine. Hollywood is notoriously straight-laced when it comes to the behavior of a young star. This is an industry town. Actresses who expect to be taken seriously simply don't get drunk and behave like this in public."

We say, old chum, we do agree! Outraged! Outraged, we are! Our monocles are spontaneously tumbling from our eyes and we're sweating about the waistcoat just thinking about this lady's undecorous behavior. Honestly, come on, people. This is Hollywood. Out of control behavior and stupidity are richly rewarded. Look at Tara Reid and Anna Nicole Smith.

Sienna. Naked. MrSkin.com.