Heinberg is the Screenwriter of the film Wonder Woman, directed by Patty Jenkins. His television writing and producing credits include The Naked Truth, Party Of Five, Sex And The City, Gilmore Girls, The O.C., Grey's Anatomy, Looking, and Scandal. Most recently, Heinberg developed, wrote, and ran ABC’s The Catch, starring Mireille Enos and Peter Krause. For Marvel Comics, Heinberg created and wrote Young Avengers and its sequel, Avengers: The Children’s Crusade with co-creator/artist Jim Cheung. For DC Comics, Heinberg co-wrote JLA: Crisis Of Conscience with Geoff Johns (art by Chris Batista), and re-launched Wonder Woman with artists Terry and Rachel Dodson.