Superman: Doomsday is a 2007 American direct-to-video animated superhero film, adapted from the popular DC Comics storyline The Death of Superman, focusing on the supposed death of the superhero Superman. The film is rated PG-13 by the Motion Picture Association of America for action violence and is the first in the DC Universe Animated Original Movies line released by Warner Premiere and Warner Bros. Animation. It was followed by Justice League: The New Frontier. Wikipedia
Dark Superman: You know, Metropolis is doing just fine without you. Superman: I'm not sure I approve of your methods. Dark Superman: I'm not asking for your approval. Get this straight, you're not needed here. Metropolis is under my protection, now and forever. Superman: Over my dead body.