What if the movie started with opening credits similar to Spiderman 2, with comic book panels of Superman, Lois etc etc & then when it cuts to black, we hear faint rumbles, like fighting in the street, muffled voices, police sirens. As it gets louder & builds to a certain point, BAM!, we see Metallo or Bizzaro  crashing through a wall onto the streets of Metropolis & out comes Superman from the rubble in all his glory, eye's slightly glowing red from having just blasted the villian & then he recites the lines from that JLA episode.
"I feel like I live in a world made of cardboard, always taking constant care not to break something, to break someone, never allowing myself to lose control for even a moment or someone could die. But you can take it, can't ya big man!?. What we have here is a rare opportunity for me to cut loose & show you just how powerful I really am".
As Superman speeds forward & lands one of the most powerful punches ever put on film, we cut to the villians POV, seeing Superman's fist coming toward us as we then cut to black as he lands the punch. From there we cut to the DP & begin the movie, where they talk about Superman's latest fight with said villian & talk about the villian being put behind bars or whatever. Just a thought, it's what I'd do.
Steve