Jessica Chastain has questioned why Scarlett Johansson has not yet been given her own solo Marvel film.
Johansson has starred as Black Widow in Iron Man 2, Avengers Assemble and Captain America: The Winter Soldier, but is yet to receive a solo movie of her own.
Chastain has waded into the debate saying that Johansson is a bankable star - she is currently enjoying success with Lucy - and should now be given a solo Marvel project of her own.
Speaking to The Wrap, the actress said: "Where is the Scarlett Johansson superhero movie? I don't understand it, why is it taking so long for this?" she declared to The Wrap. "This woman clearly shows that people want to go see her in the movies."
"Lucy, didn't it beat Hercules by a lot opening weekend, when it was made for a lot less? She shows that she kicks ass, she's a great actress.
"Under the Skin is an incredible film, and why are we still waiting for a go-ahead on a superhero movie starring Scarlett Johansson? To me, it's a no-brainer. You want to make money, put Scarlett Johansson in [her own] superhero movie!"
Johansson teamed up with Chris Evans earlier this year for Captain America: The Winter Soldier - a movie that went on to gross over $714 million at the global box office.
She will be reprising the role of Black Widow next year in Avengers: Age of Ultron, where it has been hinted she will play a much bigger role.
Marvel have announced a series of release dates for films over the next three or four years, but have yet to reveal which title will fill them. Could a solo Black Widow movie be on the horizon.
Chastain's backing of Johansson comes just a few days after director Neil Marshall said he would love to direct a solo Black Widow film.
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