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Rock on: Keira steals the show in her Valentino gown and new sparkler

ENGAGED actress Keira Knightley seemed on top of the world as she turned up to her movie premiere proudly showing off her ring.

While she arrived to the opening of her film Seeking A Friend For The End Of The World without her rocker fiance James Righton last night, 27-year-old Keira looked radiant as she posed on the red carpet.

The A-lister was dressed in an embroidered, floor-length gown by Valentino for the event, which took place in Los Angeles.

Keira may have been swapping wedding tips with newlywed Drew Barrymore, who turned up to the glitzy affair to lend her support.

Charlie's Angels star Drew, who is pregnant, channelled her laid-back look in a loose-fitting black blouse, jeans and tousled hair.