The Moon Nazis' invasion plans rely heavily on a device called the 'Götterdämmerung,' which needs a strong power source, ultimately provided by an iPhone.
Before dying, Léon passes a live grenade to Stansfield, killing him and completing Mathilda's revenge, while Mathilda starts a new life and plants Léon's beloved plant in a schoolyard, symbolizing a new beginning.
Dr. Otto Octavius becomes the villain Doctor Octopus after a fusion reactor experiment goes wrong, which causes the mechanical arms to fuse with his spine.
Private James 'Joker' Davis and his platoon are sent to Vietnam after completing their training, where Joker becomes a war correspondent for Stars and Stripes magazine.
The photo that Trevor finds of Ivan at a carnival is actually a doctored photo where Ivan's face replaces Trevor's own, suggesting Ivan represents an alternate version of himself.
Jerry, as Daphne, is pursued by an actual millionaire named Osgood Fielding III, who proposes marriage to him, not knowing he is actually a man in disguise.
Robert Ledgard keeps a woman named Vera in his home under strict surveillance, initially presented as his wife, but she is actually Vicente, a young man Robert transformed into a woman through forced gender reassignment surgery.
The man they believe to be responsible, Le Tenia, is not the one who gets killed by Pierre with a fire extinguisher; they mistake another man in the club for him.
Project Mayhem, an anarchist group, is actually led by the Narrator under Tyler's guise, with plans to destroy credit card company buildings to reset debt records.
The film concludes with Lilja's tragic death, heavily implying it is by suicide, and she is seen ascending to heaven where she is finally reunited with Volodya.