'I went for a classic Brigitte Bardot style,' says hairstylist John D, who prepped Sienna Miller’s damp tresses with Moroccanoil’s Hydrating Styling Cream, £21.85. Next came a super-smooth blow-dry.

1. Once dry, he created a messy centre parting and pulled the front of Sienna’s hair back and pinned it into a half updo. 'I left some volume at the front to give this classic look a twist. It was a humid night in New York, so I finished with Moroccanoil’s Luminous Hairspray [£17.85] to prevent any frizz.'

2. 'I wanted to create an intense Sixties inky blue eye,' says make-up artist Kate Lee, who wet the tip of Chanel’s Intense Eye Pencil in Marine, £17, before smudging it over Sienna’s lids. 'I then pressed a navy shadow over the top, careful to keep a neat oval shape and applied lots of mascara.'

3. Lee let Sienna’s eyes do the talking and kept her skin über-natural. 'I just prepped it with Chanel’s Hydramax+ Active Cream [£43],' says Lee.

4 Sienna opted for a matte nude lip and bronzy glow to complement her killer outfit and perfect accessory – Jude Law!

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