We don't like Sienna that much. First of all, she is too conceited and too full of herself to admit that people know her face because she dated one of the hottest guys in Hollywood (Jude Law, for those who don't know) and not because she is such a great actress. Then, she is so stuck up that she would even make ridiculous demands on the grounds of 'Don't you know who I am? I am Sienna Miller! I am a famous actress'.

On the other hand, her big breakthrough movie, 'Factory Girl', is just about to be launched in the US and I find myself somehow inclined to give her a fair chance of proving her real worth. But, as fashion is concerned, nothing that Sienna can do would ever make her an icon in the true sense of the word.

Let's take her look of a couple of nights ago. We will make sure we're not too narrow minded to let her actions influence us in our judgment of her fashion sense which, by the way, is lacking completely. For the New York premiere of 'Factory Girl', the actress donned a very chic white dress, something simple that really worked wonders for her.

The reasons for which she apparently chose to go all tacky on us at the afterparty are still unknown. The thing is, Sienna changed out of that white number and went for an all-black one, an ensemble that would have probably worked had she been after the '60s dancer look. You see, she changed into black leggings (more like control pantyhose), to which she added a pair of her granny's panties, a fluffy top, ankle-high boots with high heels and a leather jacket.

I'm still confused as to what's missing here: pants?, a skirt?, a mirror?, or just mere common sense. Usually, people like it when somebody tries to bend the rules a bit, putting on outfits that usually are not to be worn outdoors, but going out as if you had just gotten out of the bathroom is not cool. If she had looked good in this, then we would have said 'You go, dudette! Show 'em how it's done!' but this is certainly not the case here.

Plus, seeing a woman's underwear is fun only in the following cases: A. she's in your bed, looking for some sweet luvin', B. she is posing for some magazine or another, and C. she's flashing it to the cameras. Sienna qualifies for none of these.