David Hayter wants to revive his Black Widow project.
The actor/filmmaker - best known for voicing Solid Snake in the Metal Gear Solid video games - is keen to return to the shuttered Marvel Studios project.
"For Black Widow, I wrote [a script] ten years ago and I was attached to direct it then," he told Latino Review.
"Then a few female action movies came out and they didn't do very well. And the movie got shelved.
"It's on IMDB and I'm going to talk to Marvel about possibly re-igniting that project. It really depends on Marvel on what they want to do with that character.
"So that's the status of that right now. As far as I know, it's not a project that's happening yet. But I have written a script for it."
Hayter was a writer on X-Men, X2 and Watchmen.
He is also developing the script for an adaptation of Anne McCaffrey's classic fantasy series The Dragonriders of Pern.
Scarlett Johansson has played Natasha Romanoff/Black Widow in Iron Man 2, The Avengers and Captain America: The Winter Soldier.
President Kevin Feige previously disclosed that Marvel is developing ideas for a solo film, with Johannson saying: "I want to see it."
Johansson will next reprise her role in 2015's Avengers: Age of Ultron.