According to director Lauren Montgomery, Hal Jordan's origin story had been previously covered in Justice League: The New Frontier (2008): "We really didn't want to spend a whole lot of time telling that same story over again. So here, the origin story is over and done before the opening credits."
Abin Sur's appearance is modified to make him look more alien, with various horn-like appendages attached to his face and only four digits on each hand.
Carol Ferris is voiced by Olivia d'Abo, who previously voiced the same character's supervillain alter-ego, Star Sapphire, on several episodes of Justice League (2001).
The blue alien Hal Jordan saves from Kanjar Ro bears a distinct similarity to Saint Walker, the Blue Lantern from the "Blackest Night" event in the "Green Lantern" comics.
The costume Sinestro uses in the final battle is the same one he adapted in the comics, around the time of "Sinestro Corps War" storyline.