The Marvel Cinematic Universe is full of fan-favorite characters and movies, but the Avengers are the stars of the show. Earth's Mightiest Heroes has had four movies, three of which are generally considered to be some of the best superhero movies ever - Avengers, Avengers: Infinity War, and Avengers: Endgame, with Avengers: Age Of Ultron not getting the love of the other three. A big reason they succeeded is because of the superheroes that make up the team, with the core of Captain America, Iron Man, Thor, Hulk, Black Widow, and Hawkeye being the most popular MCU heroes and most important to the Avengers films.
Source：https://www.cbr.com/every-avengers-movie-starring-black-widow-in-order/
