Though it does differ in many ways from said graphical novel/comic - "Hellblazer" ; Mr Constantine is no longer a Scouser (I don't think Keanu could have managed that accent, not after his last attempt at "English" in "Bram Stokers Dracula"), nor does he have blond hair, and now he lives in America instead of England, it still manages to stays faithful enough to the original values and ideas of the series (John is still a sardonic and uncaring bastard) which means it's still dark enough, exciting enough and humorous enough to appease even die hard fan boys. Basically it's all that "Hellboy" should have been, but wasn't.