There were rumours about hbic Peggy Carter (Hayley Atwell) and Howard Stark (Dominic Cooper) appearing in the Ant-Man movie in a flashback. Well, it seems that Peggy at least is going to be in it because Marvel released a casting notice asking for an experienced stand-in for Hayley Atwell. Early drafts for the movie saw a young Hank Pym meeting with SHIELD in a flashback.
Ant-Man would make it Hayley's seventh appearance as Peggy for Marvel, after her show 'Agent Carter' debuts in January of 2015. Her role in Ant-Man means she will be in both of Marvel's blockbusters next year. slayyy.
I guess now I have a reason to watch it. Well played, Marvel.