2021's Black Widow confirms that Natasha Romanoff evaded capture by Secretary Ross and the US government, but it doesn't show us how. A deleted scene, however, does.

In addition to Black Widow and Avengers: Endgame, Johansson has appeared in MCU projects such as 2010’s Iron Man 2, 2012’s The Avengers, 2014’s Captain America: The Winter Soldier, 2015’s ...