The 28-year-old slipped into her strapless LBD when she attended the premiere of Don Jon at the 2013 Toronto International Film Festival on Tuesday evening (10 September).
The blonde actress looked every bit the movie star with her hair styled loosely in a bun and a pearl necklace that would have made Audrey Hepburn proud.
She wore simple black stilettoes with lace detail, and lashings of pink lipstick to complete her sexy look.
And like most newly-engaged women, Scarlett didn't shy away from dazzling the paps with a vintage ring given to her by fiancé Romain Dauriac, last month.
French journalist Romain accompanied Scarlett to the screening of her other film Under the Skin at the Venice Film Festival on Monday.
But this time round she wasn't fazed to go alone, as she posed with co-star Joseph Gorden Levitt, who described her as a "gorgeous, gorgeous girl" in an interview with Men's Health.
Joseph, 32, who wrote and directed the film as well as starring in it, said that he was enamoured by the star's sex appeal.
And aren't we all? Romain is one lucky, lucky man!
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Copyright: Instagram Mark Wright