Fan Casting Green Lantern

The movie opens in the middle of space as debris and metal floats away. We see Hal Jordan and Alan Scott arrive to figure out what happened. Hal soon finds a specific part of the broken ship that belongs to the planet Ysmault. Once they get to this planet they go and talk to the ruler Atrocitus the Red Lantern who instead of talking with them about the ship he kills Alan Scott and Hal flies away. Once back on Oa Hal tells Killowag and Sinestro what happened which leads to another lantern war between the Green Lanterns and Red Lanterns. Later that day Hal is called to meet with the Guardians of the Universe who tell Hal that since he started the second war this month, he can stop it peacefully. Hal ends up getting partnered with a new young Green Lantern named John Stewert and the two of them head to Ysmault where they'll try and reason with Atrocitus. They manage to talk to him for a bit, but it ends with a huge fight. The fight goes on long with Atrocitus mostly winning but as he gets Hal to the ground John unlocks the full power of the ring and creates a room with unbreakable walls with his ring. After getting Atrocitus into a holding facility the Guardians of the Universe manage to reason with the Red Lanterns to stop the war.