Black Widow first debuted on screen in 2010′s “Iron Man” and later appeared in “The Avengers,” “Captain America: The Winter Soldier,” “Avengers: Age of Ultron,” “Captain America: Civil War,” “Avengers: Infinity War” and “Avengers: Endgame.” The character was last seen (spoiler alert) sacrificing herself to save the galaxy after the evil Thanos tried to wipe out half of the population of every living thing, every where. Naturally, “Black Widow” will take place before this heroic act played out in “Endgame."”Black Widow" will debut in theaters on May 1, 2020.