Scarlett Johansson at 'The Avengers' film premiere, Moscow, Russia on April 17, 2012 Credit: Picture Perfect/Rex USA

It seems that Scarlett Johnasson's big screen alter ego is influencing her red carpet fashion choices.

The actress, 27, who donned a skintight black bodysuit to play the Black Widow in The Avengers, stepped out in her second sexy LBD while promoting the film in Russia Tuesday.

Johansson flaunted major cleavage in a Nina Ricci look, which featured a plunging neckline, ruching and ribbon detailing on the tight bodice. She paired the ensemble with black Giuseppe Zanotti Design pumps and a white gold Karma El Khalil cuff.

For the flick's Los Angeles debut last week, she chose a structured Versace design with an on-trend peplum skirt and Giuseppe Zanotti strappy sandals.

Despite looking like a knockout right now, the star recently revealed to Vogue that she's still hurting from the end of her two-year marriage to Ryan Reynolds.

Johansson called the breakup "comically amicable," but clarified that it was still "horrible . . . Of course it's horrible. It was devastating. It really throws you. You think that your life is going to be one way, and then, for various reasons or whatever, it doesn't work out."