His breed is uncertain ... among the fan base - "Good boy, Krypto! Great boy James Gunn!," superhero movie maven Kevin Smith gushed online - is that bringing Superdog to the big screen signals ...

Created by writer Otto Binder and illustrator Curt Swan, Krypto the Superdog made his DC Comics debut in March 1955 in Adventure Comics #210, in which he goes on an adventure with the younger ...