We already have a live action version.
My cases are:
Superfriends- Batman watching his parents die and the death of Superman
Batman TAS- Clayface losing his humanity, Bats trying to save Harvey from his worst enemy, “Dreams in Darkness,” the death of Dick’s parents, Batman escaping his dream world, and the death of Robo Bats.
The New Batman Adventures- Joker throwing Quinn out the window.
Superman TAS- Jor-El acceptign Krypton’s end. Superman realizing what Brainiac does, the end of “Apokolips…Now?”, Toyman’s storybook, Rud vs. Earl, most of the Bizzaro scenes, almost all of “Brave New Metropolis”, Lois’s breakdown over Clark’s death,
Batman Beyond- Bats puts on the suit for the last time against Inque, Terry refusing to kill Blight, Ace saving Terry, Bats taking the pill, Big Time, Ra’s’s resurrection,
Justice League- Justice Guild vs. Brainwave, J’onn vs Etrigan, Bats saves Clark on the asteroid, Green Lantern vs. Dr. Destiny, most of “Hereafter”, and Hro vs. Shayera.
Justice League Unlimited- Clark vs Mongul, Shayera and Grundy, Green Lantern saving Warhawk,
Clark vs Billy, Clark calling the traitor part of the League, Flash vs. Lex, the Ace scene,
Robot Chicken- '60s Bats’s death.
Green Lantern TAS- Razer finding out the truth, Mogo’s reveal, Hal vs. Kilowag, Steam Lantern mentions Alan, Larfleeze, and the ending battle and scene.
Mask of the Phantasm- Batman at the grave
Return of the Joker- Kiss the Cook and the death beam.
Doomsday- Clark vs. Doomsday, and Clark challenging the Eradicator.
Dark Knight Returns- Bats vs. Joker, Robin vs. Abner, Bats and Robin hugging, and Bats vs. Mutant Leader Round 1.
Justice League vs. Fatal Five- Bats’s statue and the ending
Justice League Gods and Monsters- Most of the second half.
Under the Red Hood- “What hurts you more. That your greatest failure has returned from the grave or that I’ve become a better Batman than you.”
Reign of the Supermen- Clark’s Return and opening his eyes.
Crisis on two Earths- The ending battle.
First Flight- Hal becomes Parallax.
Superman vs. The Elite- Clark tries to save Atomic Skull and treating the Elite like animals to be put down.
Superman Unbound- Battle in the swamp.
Public Enemies- Clark avenging Bats.
Scooby-Doo and Batman the Brave and the Bold: Bats fixes his greatest mistake.