It has been a strong year for comics so far: sales records are being set everywhere, led by DC’s smash Absolute line, and comics shops are thriving. Even the Marvel Cinematic Universe is staging a comeback with new Avengers and Spider-Man films in the pipeline. The good vibes are set to carry over into San Diego Comic-Con, the annual extravaganza of all things pop culture. Now in its 56th year, the show runs Wednesday, July 22, to Sunday, July 26, at the San Diego Convention Center.