I think a 10-minute prologue should take place based on Alan Moore's story about Abin Sur meeting Qull of the Five Inversions.
Basically, the Five Inversions (One of which is Atroicuts, leader of the Red Lanterns) were the five surviving members of the Manhunters massacre on Space Sector 666, they swore to get revenge on the Oans and formed the Empire of Tears which three galaxies. Eventually they got into battle with the Oans on the Empire's capital, Ysmault, and were crucified and melded with the machinery on the planet. It was off limits to all Green Lanterns.
After a few eons of going undisturbed an Ungaran ship crashed on Ysmault and Abin Sur was sent to rescue the survivors. Being unable to find the ship, Abin went to the Five Inversions, they all demanded he free them first, except for Qull who simply agreed to answer three questions for nothing in return. He told Abin where to find the one child that survived the crash. The second question was how he would die, Qull told him that at some point in time his ring would fail him at a crucial moment and would be his death. The third question was what the greatest tragedy to befall the Green Lanterns would be, Qull told him it would be when all of the Green Lanterns' enemies rise up and join forces.
Abin Sur says that he's not scared but afterward instead flies in a ship and constantly recharges his ring. This lead to his crash on Earth, his ship failed him and he passed through yellow radiation he would have detected if he had been using his ring and not flying the ship. Thus he fell to Earth. The Five Inversions laughed for nineteen weeks.