Superman: 20 Easter Eggs You Probably Missed
1. Belle Reve
At the end of the film, we hear that Lex Luthor is being transported to Belle Reve - a correctional facility which should sound familiar to those even casually versed in DC lore.
This federal penitentiary is commonly featured across DC media, most notably in live-action form in the Suicide Squad movies and Peacemaker.
Naturally Lex going to Belle Reve leaves the door tantalisingly open for him to cross paths with countless other DC supervillains in future films and TV shows, as well as Amanda Waller (Viola Davis), who runs the facility.
It goes without saying that we probably won't go too long without seeing Lex again either way.