Scarlett Johansson stars as Natasha Romanoff, AKA Black Widow, in Marvel’s “Black Widow.”Disney | MarvelIt’s been a week since AT&T’s WarnerMedia shocked Hollywood with its plan to release its entire 2021 movie slate on HBO Max at the same time the movies hit theaters.Don’t expect other streaming services to follow suit — at least not yet.WarnerMedia will likely be the guinea pig for the media industry — perhaps to the relief of its competitors. Even WarnerMedia CEO Jason Kilar doesn’t expect the competition to follow. He cited fear and a belief in a different business approach as reasons why WarnerMedia …
