Now, the Oscar-nominated actress can finally admit that she's getting her own standalone film in May.
"Can I finally say that?" she told ABC News' Adrienne Bankert in an interview that was shot at Comic-Con International: San Diego this weekend and aired Monday on "GMA."
In the revealing interview, the actress talked about her defining sacrifice in "Avengers: Endgame" and how she feels like this is icing for her Marvel Cinematic Universe career.
"I would've been happy to, you know, to end it at 'Endgame' and walk away," she said. "I was proud of the work that we had all done together, and that the only reason to do this standalone would be to elevate the genre in some way. And so hopefully, we will have."
Speaking of that sacrifice, it's still unknown if this film will be a prequel or some kind of resurrection, but the actress is teasing a little of what fans can expect. She also shared it's currently in production.
"You actually get to all the questions you may have had about this mysterious character and who she is," Johansson said. "Where she comes from, her makeup, who she knows, like, what makes her her? What are the secrets of the past that haunt her?"
Johansson will follow in the footsteps of Brie Larson's "Captain Marvel" as the second female hero to lead her own MCU film.
"It's a little bit scary not having the kind of cushion of my fellow Avengers around," she went on. "You kind of feel like you put yourself out there in a different way because the character stands on her own."
Johansson says she feels physically ready though.
"I think I'm in better shape than I've been in a long time, which is awesome to say, in my mid-30s, and also I have a 5-year-old daughter," she said. "The character is an extension of me in a lot of ways. And you know, I never could've done this film 10 years ago. I think as I've grown over these years, I feel much more comfortable getting kind of dirty and digging deep, and I think the film will benefit because of it."
There have been a lot of scenes and talk about the character's past involvement with her beloved friend Hawkeye, who saved her life when he was sent to kill her, so will Jeremy Renner be making an appearance here? It was also confirmed he was his own series on Disney+.
"Oh my God, that's when you see the tranq gun come out," she joked about keeping her lips "sealed" for Marvel. "We have a lot of surprises up our sleeves ... Up our Gauntlet."
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