Following an "Avengers: Age of Ultron" press junket, where a second theatrical trailer for "Ant-Man" was released, he shared how "Ant-Man" bridged the gap between "Avengers: Age of Ultron" and "Captain America: Civil War," which he called "the start of Phase Three."
It's not [an after thought]. The truth is the phases mean a lot to me and some people but...Civil War is the start of Phase Three. It just is. And Ant-Man is a different kind of culmination of Phase Two because it very much is in the MCU.
You meet new characters and you learn about Hank Pym and his lineage with the MCU over the years. But at the same time, it also picks up the thread of Age of Ultron in terms of heroes - major heroes, Avengers - coming from unexpected places. Whether it's prison in the case of Scott Lang or being a very disgruntled Sokovian Twins as Wanda and Pietro are in Age of Ultron. And in that way it connects a lot.
Also, Hank Pym's attitude towards Avengers, towards S.H.I.E.L.D, and kind of the cinematic universe in general, is much more informed after the events of Age of Ultron, and in a certain way, before the events of Civil War.
"Ant-Man" opens on July 17.