|Rudd and Jones in the 2009 comedy, I Love You, Man|
Ant-Man. It's a film slated for a 2015 release. Rudd would play Dr. Hank Pym; who invents a size altering suit. Jones would play Janet van Dyne, who later takes on the moniker of Wasp. Her character, much like Ant-Man, can change in size. This casting is all categorically 'rumor' at this point. There are however multiple sources verifying that deals are being worked on.
As long ago as May 2010, fan favorite Nathan Fillion was rumored to have nabbed the role of Ant-Man. And a few weeks later, the internet ran amok with the rumor that Eva Longoria would play Wasp. Now we have to wait and see when actors will officially sign on. I'll keep everyone posted!