Cast.casted
From the old reports of this script, the idea was that Pym would be Ant-Man in the 1960s and Lang would be Ant-Man in the present day. If they're casting a big name like Douglas as the older Pym, I suspect they've reduced or eliminated the story of the younger Pym (otherwise they would have cast a young man and given him old-age makeup for the present day scenes), but I wouldn't be surprised if he was once supposed to have been Ant-Man in the narrative.and he won't be Ant-Man (I suspect he'll still create Pym particles).
Yeah, I'm thinking that as well. It would also be a good opportunity to incorporate young Hank Pym into an Agent Carter series or AoS flashback as a guest character, depending on how the movie sets things up.