So far we've seen "leaked" photos from Avengers: Age of Ultron, but this might be the first official photo we've got. It's of Robert Downey Jr. and executive producer Jeremy Latcham. They are both wearing protective vests but not helmets, so while there is construction going on, but it must not be heavy construction. Downey is rocking a purple jacket and a ponderous pose. This photo comes from Downey's Twitter, so maybe he'll tweet more set photos in the future.
Avengers: Age of Ultron will dominate the world May 1st, 2015.