"Captain America: Civil War" co-writers Christopher Markus and Stephen McFeely have opened up about the growth of Black Widow in the Marvel Cinematic Universe, discussing the character's journey from the dark into the light -- possibly hinting at the direction of her character in the solo film, which Marvel has reportedly committed to.

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The screenwriting duo told TheWrap, "That character's journey, over her various appearances, is one coming out of the shadows and into the light."

Commenting on the character's trajectory as a more clear-cut hero, Markus said, "We met her as Natalie Rushman, a spy in Tony Stark's camp, then she joins SHIELD and at the end of 'Winter Solider' leaks all these secrets," adding, "She's out as a good guy, and this is what it means to take on the responsibility of leadership."

Despite Marvel's commitment, "Black Widow" solo film hasn't been given a release date -- but they have expressed interest, and so have fans.

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Black Widow's set to appear next in the tentatively-titled "Avengers: Infinity War Part 1," due in theaters May 3, 2018.