While we're waiting...
Back in 1981, Ralph Macchio and Paul Gulacy showed us what a Black Widow film of the time might have looked like in the first issue of Bizarre Adventures magazine - in glorious Noir (et blanc) -
I hope that helped.
If not, maybe try that Black Widow/Punisher animated movie team-up for a temporary fix. (Avengers Confidential - 2014)
pages by Ralph Macchio & Paul Gulacy for Bizarre Adventures #25 (1981)