Nicole KidmanNicole KidmanCrikey, we thought Nicole Kidman had done the nuptials thang already.

So, what wedding did she step out for?

Nic was out in honour of Margot At The Wedding, a film she's starred in alongside Jack Black and Jennifer Jason Leigh.

Also stepping out at the screening in New York City was Jamie-Lynn Sigler.

Now, you'd think it being a do and all that, she'd have dressed to the nines.

But seems Jamie decided to adopt a more, well, casual approach to the eve.

See Nicole Kidman and other stars at the Margot At The Wedding screening.