 AC has expanded into other DVD projects which collect classic movie serials and other material now in the public domain, as well as low-budget films based on their own characters.AC Comics had used Charlton Comics characters, particularly the Blue Beetle and Captain Atom, in the comic title "Sentinels of Justice".When the rights for these characters were sold to DC Comics, AC Comics created a second Sentinels of Justice team (writing the first out of continuity), composed of some of its original characters as well as ones from the public domain.