Reed hasn't directed a whole lot, but titles you might recognize are Yes Man, The Break-Up, and the semi-cult adored cheerleading comedy Bring it On. He also directed episodes of the Back to the Future television series back in 1991 as well as 13-episodes of The Weird Al Show in 1997.
Marvel also decided to release an initial synopsis for Ant-Man to try and get interest back up:
"Armed with the astonishing ability to shrink in scale but increase in strength, con-man Scott Lang must embrace his inner hero and help his mentor, Dr. Hank Pym, 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."
Ant-Man is still slated for release on July 17, 2015 and stars Paul Rudd, Michael Douglas, Evangeline Lilly, Patrick Wilson, Michael Pena, and Corey Stoll.