Sienna Miller oozes androgynous chic in a tux as she joins glam Kate Winslet and Benedict Cumberbatch and James Norton at A-list carol service at St George’s Church

Sienna Miller, Kate Winslet, Benedict Cumberbatch and James Norton were among the Hollywood elite attending a star-studded carol service on Wednesday evening.

The group of A-listers were seen leaving St George’s Church following the Story of Christmas Appeal last night in Hanover Square, London.

Sienna, 42, cut a cool figure in a black tuxedo and bow tie ensemble, which she styled with a white shirt and a pair of statement earrings.

The actress wore her dark blonde locks up in a chic updo and opted for a glamorous coat of make-up with a slick of red lipstick.

She accessorised with a red clutch bag and added height to her petite frame with a pair of simple back stilettos.

The group of A-listers were seen leaving St George’s Church following the Story of Christmas Appeal last night in Hanover Square, London

The stars enjoyed performances from the Band & Fanfare Trumpeters of the Scots Guards and the Choir of Westminster Cathedral.

Celebrity readers included Rowan Atkinson, Simon Callow, Victoria Coren Mitchell, Benedict Cumberbatch, Rupert Everett and Aled Jones.

The congregation also heard from Ian Hislop, The Lord Bishop of London, Sienna Miller, James Norton, David Mitchell, Hussina Raja, Sophie Raworth, Julia Sawalha, Adrian Scarborough, Dan Snow and Kate Winslet.

The event this year raised more than £1million for the first time in the event’s 47 year history.

James Norton made a dashing appearance at the event

Rowan Atkinson was among celebrity readers at the event

Kate Winslet and husband seen leaving St George’s Church

Aled Jones spotted leaving the event

Rowan cut a smart figure in a black tuxedo