Sienna Miller makes her first red carpet appearance since the birth of daughter Marlowe

The British actress looked gorgeous as she attended the Hamptons International Film Festival 2012 in New York

She's been keeping a low profile ever since she gave birth to her first child in July, but Sienna Miller was back in the spotlight this weekend as she hit the red carpet in style at the Hamptons International Film Festival in New York.

The new mum looked stunning at the chairman's reception of the festival in a white long-sleeved dress with sexy splits up the arms by Alessandra Rich, which she teamed with a pair of nude Prada heels, a mini red clutch and a shimmering gold cuff. Natural, dewy make-up and straightened locks completed her pretty look.

SIENNA MILLER: STYLE HIGHS & LOWS

The following day, Sienna was back at the film event to attend a 'Performers to Watch' brunch hosted by Variety magazine. This time the actress kept things more relaxed, wearing a white shirt, black cardigan and printed trousers ensemble, which she accessorised with a pair of red ballet pumps and round-frame sunglasses by Thom Browne.

Sienna accompanied fellow Brit actor Toby Jones to the brunch, as they kick off the promotional tour of their new film, The Girl, which is showing at the festival.

The starlet became a mum for the first time in July, when she gave birth to daughter Marlowe. News of her pregnancy broke after a year of dating fiancé Tom Sturridge.

How do you rate Sienna's comeback look? Tell us your thoughts in the comments box below...

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