Parallax: Emerald Night (1996)

Plot

Green Lantern Hal Jordan was once one of the universe's greatest champions of justice. That was until the sinister Cyborg and evil tyrant Mongul destroyed everything he ever loved. Now, as the nigh omnipotent Parallax, Hal Jordan has become obsessed with revenge. But what happens after his vengeance is sated? Can current Green Lantern Kyle Rayner convince his predecessor to step back from the edge of oblivion to come back and save planet Earth from certain doom?