Superheroes

I was checking out the DVDs that a dad and his small son had chosen, and the son was looking at the covers of the different movies. He pointed at Benedict Cumberbatch (who, in fairness, was wearing a red cape) on the cover of Dr. Strange:
Son: That's Superman!
Dad: Well, he looks like Superman, but his name is Dr. Strange.
Son: But does he have to save the day?
Man behind them in line: No, he gets to save the day!