Michelle Williams & Natalie Portman have a catfight!

Michelle Williams and Natalie Portman have decided to pretend to be in a relationship for Roman Polanski.

The result? An ace perfume ad that ends in a catfight. Brilliant.

You can see images from it by going to the gallery to your right, or you can head for our click-through feature , if you want to see them in order.

The effect is a bit like a flickbook. A sexy flickbook.

Either way check out the shots, because they're essentially all of your dreams coming true at once.

The ad is for a perfume called Greed. We've never heard of it, but we've just ordered 50 litres.