Who's gone skinny?Who's gone skinny?This star has seen most weights on the scales.

But her latest look is back to her uber skinny days.

Standing on the red carpet next to Sarah Jessica Parker, it became obvious just how diddy Renee Zellweger currently is.

Anyone who has watched Sex And The City knows that SJP is the most mini of ladies but standing next to Renee she looked almost fleshy in comparison.

If only they'd bring out another Bridget Jones movie, so we could see Ren add some meat to her bones.

Remember her in that bunny girl fancy dress?

Of course, this isn't the first time we've seen Renee shrink down to minute proportions - see her changing shape over the years in the gallery of pics...