Ultron returns to cause even more trouble for our heroes in another trailer for Marvel's "Avengers: Age of Ultron," in theaters May 1! ► Subscribe to Marvel: http://bit.ly/WeO3YJ Follow Marvel on Twitter: ‪https://twitter.com/marvel‬‬ Like Marvel on FaceBook: ‪http://www.facebook.com/Marvel‬‬ For even more news, stay tuned to: Tumblr: ‪http://marvelentertainment.tumblr.com/‬‬ Instagram: ‪http://instagram.com/marvel‬‬ Google+: ‪https://plus.google.com/+marvel/‬‬ Pintrest: ‪http://pinterest.com/marvelofficial/‬‬