‘The Avengers: Age of Ultron’ Easter Eggs, Trivia & Comic References By now Marvel movie fans have come to expect not only a worthwhile adventure from the studio’s superhero films, but a significant dose of comic book nods, references to the decades of Marvel history, as well as teases and hints of what’s still to come. Promising to bring a longstanding Avengers foe to the big screen in The Avengers: Age of Ultron, writer/director Joss Whedon did not disappoint.Needless to say, there will be SPOILERS in our list of Avengers: Age of Ultron trivia, so read at your own risk.