Complete with pearls and cigarette holder, Brook strikes a pose as Audrey Hepburn from the classic 60s rom-com, but she makes a slightly less convincing Harrison Ford as a whip-wielding Indiana Jones.

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The 29-year-old model became a raider of the lost dressing-up box to become Dr Jones as she promoted Sky Movies' Christmas schedule, which is allowing viewers to choose their favourite festive flicks for the channel to screen this year.

And Brook, who is currently starring in the West End production of Calendar Girls, proved she is no novice by donning a blonde bob and spinning on an Alpine meadow as Julie Andrews in The Sound of Music.

Film fans can vote for their ultimate Christmas Day line-up to watch in high-definition on the Sky Movies Christmas Channel HD including The Dark Knight, Shrek and Back to the Future.

Sky Movies is also screening a host of festive favourites on its Christmas Channel throughout December, including The Muppet Christmas Carol, Fred Claus, The Grinch and Home Alone.

Brook said: "I'm voting for Breakfast at Tiffany's to be included in the Christmas Day line-up, as I'd get everyone round to watch it. Being transformed into the glamorous Holly Golightly was fabulous."

Viewers can vote for their Christmas movie by visiting: www.sky.com/vote