One thing that fans have been wondering regarding the currently-shooting Black Widow movie is when the film takes place. Considering the fate of the Scarlett Johansson character in Avengers: Endgame, a sequel seemed highly unlikely.
And now we know that in fact Black Widow is a prequel. David Harbour, who plays Red Guardian in the film, has confirmed to IGN that the film takes place between Captain America: Civil War and Avengers: Infinity War. That means the film will be covering the period when Natasha Romanoff was on the lam after siding with Cap during the superhero civil war.
Source: IGN.com Black Widow Time Period Confirmed