Even though the main story of Black Widow will be set after Captain America: Civil War, the movie will apparently feature multiple flashback scenes and now we know we will see Natasha’s childhood.
In an article about casting for Disney’s live action Peter and Wendy, Variety confirms that Ever Anderson will be playing the young Natasha in Black Widow:
Anderson is having herself a nice moment as she is also set to play the younger version of Scarlett Johansson in Marvel’s “Black Widow.”
There have been past rumors that we might see a teenage Natasha as well in 1999, but we’ll have to wait to see if that ends up in the movie or not. But at least this confirms that we will see flashbacks to long before she joined S.H.I.E.L.D..