Trivia about Green Lantern: First Flight.
- 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.
- The Guardian Appa Ali Apsa is a major player in the DC Comics crossover event "Millennium".
- 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.
- According to director Lauren Montgomery, Hal Jordan's origin story had been previously covered in Justice League: The New Frontier: "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."
- 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.
- 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.