User blog comment:DuttPanda/The Freaking Fantastic Four Trailer./@comment-1755931-20150204131052/@comment-2058272-20150204220923

I know it doesn't make sense to throw in random brief members due to their popularity, but it's a movie. They need to make money. They need the Hulk for an awesome action scene, they need Black Widow for a female character on the team (or just... you know... for her attractiveness... that could be another reason).

Either way, I consider Hulk a main Avenger, I don't know why. I just do.