The pilot pays homage to "Action Comics" #1 (Superman's debut) by depicting the hero's original Golden Age costume for the first time in live-action. The famous green car from the cover is also featured.
The fastest renewal for a second season of all the DCTV/The CW dramas, being greenlit on the day the second episode was to be aired. This series surpassed The Flash (2014), which was renewed two weeks after the premiere.
Superman/Clark Kent's twin sons are named after his two fathers. Jonathan for his adopted father, Jonathan Kent, and Jordan for his biological father, Jor-El.
On Elizabeth Tulloch's request, Lois Lane's wardrobe is often made of direct recreations of Lois' outfits from the comics.
The scene where Lois and Clark first meet in the Planet's "bullpen" plays very similarly to their first meeting in Superman (1978). Specifically, Tyler Hoechlin's physical performance and speech pattern pays direct homage to Christopher Reeve's performance.