In several drafts of Boys of Steel: The Creators of Superman, the first line was not "Most days, Jerry Siegel slipped into the halls of his high school staring at the floor."
Rather it was "In the thrilling days of yesteryear, comic strips were printed twice as big as they are now. Movies cost ten cents. And heroes were everywhere."
I quite like it. It has atmosphere. But there is something it lacks, which is why I ultimately changed it. Guesses? Other thoughts?