Black Widow is an upcoming superhero film in the Marvel Cinematic Universe, set to be released on HBO Max. David Harbour plays the character of Alexei Shostakov, also known as Red Guardian, a Russian super-soldier and former husband of Natasha Romanoff, the Black Widow. The film explores Natasha's past and her journey to confront her dark history. With its action-packed sequences and compelling storyline, Black Widow promises to be an exciting addition to the Marvel franchise, and David Harbour's portrayal of Red Guardian adds an extra layer of intrigue to the film.