Avengers: Age of Ultron officially began filming last week in Johannesburg, South Africa, and finished up filming a scene that took three days in Italy, February 13th through February 15th. The scenes filmed in Johannesburg will be of Johannesburg and not Wakanda like originally thought, being a possible easter egg or lead-in to a Black Panther film.
South African representative says that the filming there will be the opening scene of Avengers: Age of Ultron, and will take up about the first 10 minutes of the film. A rampage scene of the Hulk, who is going to be completely CGI in his green form (which explains why Mark Ruffalo is not down there currently), is supposedly the scene they are shooting there. Images of the set have just leaked, so without further ado, I present the only two images of actual Age of Ultron knowledge we have besides the logo and the so-called trailer.
Meanwhile, the main cast of the Avengers: Age of Ultron are up in London, England, where the costume and screen testing was to take place before filming next week, should have commenced earlier today has been postponed until the flooding in London subsides, which is predicted to have settled by the end of the week. The studio assures us that it will cause no serious delay, so we as fans have nothing to worry about.
Marvel has gone far enough to say that they also have days built into the time between now and the target day to end filming in case of any other delays which currently look highly unlikely. The actors have so far only said the the film is to be much darker, and much more action packed, all while still keep the excitement and laugh-out-loud humor.