The 32-year-old put her model physique on full display int he figure-hugging gown, which featured a low cut scoop neckline and a thin sheer panel all the way up the side of her body and around the hem.
Rosie flashed her endless legs thanks to the thigh high split, and kept her accessories simple with some hoop earrings and silver high heeled sandals.
After posing for some shots on her own, Rosie wrapped her arms around fiance Jason, 51, who plays titular character Deckard Shaw in the Fast & Durious spin-off.
The action man looked as cool as ever in a black suit and matching shirt and tie, adding some stylish shades to complete his leading man look.
The couple – who have two-year-old son Jack together – gazed lovingly at one another before being joined on the red carpet by their co-stars.
Jason looked delighted to see Dwayne ‘The Rock’ Johnson, who plays his on-screen partner Luke Hobbs in the action film.
The 47-year-old power house opted for a brown suit with open necked white shirt, cream waistcoat and shades, posing happily with Jason before having pictures taken with glamorous co-star Eiza Gonzalez and his mum Ata.
Mexican actress Eiza, 29, looked beautiful in a black halterneck dress, which features a pattern across the waist and hips and a white scarf fastening at the neck.
Idris Elba’s wife Sabrina pulled out all the stops for her husband’s big night in a metallic and sheer panelled gown.
The British actor, who stars as the movie’s villain Brixton Lore, complimented his wife’s ensemble in a grey suit and black shirt and tie.
The couple – who married in Marrakesh, Morocco back in April – were joined by Idris’ daughter Isan, from his first marriage.
The teen looked lovely in a black and silver check style dress, holding her famous father’s hand as they posed fort he paparazzi.
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Also in attendance was actress Vanessa Kirby, who plays Jason’s on-screen sister Hattie Shaw.
The Crown actress followed Rosie’s lead and wore a gown featuring a thigh high slit, but opted for a high neck one shouldered black dress.
Hobbs and Shaw picks up where The Fate of the Furious left off, with the titular characters – who have an intense dislike for each other – being forced to team up to stop Idris’ character Brixton.
Brixton is a former MI6 agent who has been cyber-genetically enhanced international terrorist leader who has helped create a virus which could wipe out humanity.
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by – TheSun TV and Showbiz