"You don’t say no to the Avengers. I've never experienced anything like it in terms of scale. We took over several towns in Italy and made them look like they were in the middle of a war. Then we moved the whole set to north London, where we took over an old police academy. It was just insane. There were real explosions and you could feel the heat of them." Elizabeth Olsen was stunned by the size of AVENGERS sequel Age of Ultron. The actress plays Scarlet Witch in the Marvel blockbuster.