Avengers 2 Age of Ultron Hulk Extreme Head Knocker (XL)Marvel Comics is the inspiration for the 2015 blockbuster flick Avengers: Age of Ultron. It Is a follow up crossover to The Avengers and Thor: The Dark World, as well as a follow up to Captain America: The Winter Soldier. In the Marvel Cinematic Universe, it's the eleventh film and the fifth film of Phase Two. Avengers 2 Age of Ultron Hulk Extreme Head Knocker is guaranteed to be a hit with fans of the film and comics. In every Avengers film, the Hulk