|  |  | | It does seem the most obvious interpretation; that the titles refer to Superman's powers. The trouble with this reading is that the formula will run out soon: all we've got left is 
 "More powerful..." [than a locomotive -- I thought it was "stronger than a locomotive", but apparently not]
 
 "Able to leap..."
 
 "Look, up in the sky..." and then "It's a bird", "It's a plane."
 
 So there's not really much mileage left in that idea.
 
 NB. Kingdom Come ran like this:
 Strange Visitor
 Truth and Justice
 Up in the Sky
 Never-Ending Battle
 
 Derived from the 1952 "Adventures of Superman" TV show, which I must have watched on re-run because I remember this introduction:
 
 Voices: "Look up in the sky! It's a bird! It's a plane!
 It's Superman!"
 Announcer: "Yes, it's Superman, strange visitor from another
 planet who came to Earth with powers and abilities
 far beyond those of mortal men. Superman, who can
 change the course of mighty rivers, bend steel in
 his bare hands; and who, disguised as Clark Kent,
 mild-mannered reporter for a great metropolitan
 newspaper, fights a never ending battle for truth,
 justice, and the American way."
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