The teaser site WhatisTheMatrix.com came back online on October with the returning Choose Your Reality section where visitors chose either the Red or Blue pills and they would be treated to a unique teaser for The Matrix Resurrections, it also featured exactly 2,880 unique variations of dialogue for both versions because the teaser would detect your time and then read it out mid-teaser.
The first teaser, revealed via WhatIsTheMatrix.com, included a shot of Neo's pill bottle, prescribed to his Matrix alter ego Thomas Anderson. The medication is called "Ontolofloxin," a clever tweak on the series' exploration of ontology, i.e. the nature of being.
Filming in San Francisco caused irritation among residents and city workers after damage was inflicted to buildings and street lights. As in the case of other productions like Shang-Chi and the Legend of the Ten Rings (2021) and Venom: Let There Be Carnage (2021) (both 2021), the producers had to pay $420,000 to the San Francisco Police Department so they could film in the city.
While in the Matrix, Lexy has a tattoo of an electrical outlet on the back of her neck, in the exact spot where her Matrix plug would be in the real world.
According to Lana Wachowski, her decision to bring back Neo and Trinity for the sequel was inspired by the loss of both of her parents (who died only five weeks apart), and a close friend. The writing process was her way of comforting herself in the face of death. She also defines Neo and Trinity as the two most important characters in her life. For Lilly Wachowski, however, this sense of loss was part of her decision to NOT return to the series. In her own words: "I didn't want to have gone through my transition and gone through this massive upheaval in my life, the sense of loss from my mom and dad, to want to go back to something that I had done before."