Today Marvel-Freshman of Comic Book Movie got our first vague scene description from the set of The Avengers sequel! According to their source named Irfaan Ebrahim Hulk is the main focas of the first 10 minutes of the film:
“I could see some sort of action scene where Hulk was battling someone but not too sure who was it. I could make it out clearly because they use a huge green head whenever they're filming Hulk scenes. …They used a guy dressed normally but had on a backpack with 2 iron poles holding up hulk's chest upwards and then he was doing whatever he had to do… scaring the people. By the looks of it, Hulk will probably play a major role in the Johannesburg shoot.”
He also goes onto say that many extras flee from the hulk, cars are smashed ...while all of this takes place in the opening action sequence of the film.
The Avengers: Age of Ultron smashes into theaters May 2015