In a refreshing twist, Black Widow star Scarlett Johansson is getting as candid as is humanly possible at this point about her upcoming standalone Marvel film. Black Widow will take us back into Natasha Romanoff's past as we explore a defining moment in her Black Widow journey. Joining Johansson in this solo MCU outing is Florence Pugh, Rachel Weisz, and David Harbour. Johansson opened up about the themes of Black Widow and lightly touched on Natasha's emotional arc in the movie, which has to go into the past based on her fate in Avengers: Endgame. As such, we …