Here is the official press release from Marvel:
Armed with the astonishing ability to shrink in scale but increase in strength, con-man Scott Lang (Paul Rudd) must embrace his inner-hero and help his mentor, Dr. Hank Pym (Michael Douglas), protect the secret behind his spectacular Ant-Man suit from a new generation of towering threats. Against seemingly insurmountable obstacles, Pym and Lang must plan and pull off a heist that will save the world.
Peyton Reed is known for his comedies Bring It On, Yes Man and the The Break-Up. Adam McKay is a frequent collaborator with Will Ferrell, and has written and directed Anchorman: The Legend of Ron Burgundy and its sequel, Step Brothers and Talladega Nights: The Ballad of Ricky Bobby. He has also served as a hands-on producer for Hansel & Gretel: Witch Hunters.