The trailer for 'Avengers: Endgame' was released on Friday.<br />Fans are asking why Brie Larson's Captain Marvel is not in the trailer.<br />Captain Marvel is supposed to save the day in 'Avengers: Endgame.'<br />So, why is she missing from the trailer?<br />ComicBook.com reports the Russo brothers purposefully kept Larson's Captain Marvel out of the trailers.<br />---We want to save her reveal.--- Joe Russo said.<br />---very important to us to commit... to this ending very hard.--- <br />
