- The iconic green code in Matrix’s opening sequence is actually sushi recipes from a Japanese cookbook.
- Neo’s room number in the film is 101, symbolizing the basics of reality and control systems.
- Trinity’s fight scene was shot with a complex rig of over 100 cameras to create the famous bullet-time effect.
- The S&M nightclub where Neo meets Trinity is a real club called The Hellfire Club in Sydney.
- The Wachowskis originally conceived Matrix as a 600-page comic book script.
- Neo’s costume trench coat was made from an inexpensive synthetic fabric printed to look like wool.
- Keanu Reeves had back surgery before filming but still trained four months for the difficult fight scenes.
- Morpheus’s ship, the Nebuchadnezzar, is named after an ancient Babylonian king.
- The Matrix contains repeated background characters—twins and triplets—that hint at glitches in the simulated world.
- Neo’s file shown during interrogation reveals his birthdate as March 11, 1962, making him 37 in the real world timeline.
- The agent Smith character was inspired by elements from Neil Gaiman’s Sandman comics and The Invisibles.
- The bullet-time sequence was created using 120 still cameras triggered in perfect sync.
- The film’s color grading uses green tint for scenes inside the Matrix and a blueish tint for the real world.
- The movie includes subtle foreshadowing, like the phrase “You need to unplug,” hinting at Neo’s path to freedom.
- Some actors studied philosophical works such as “Simulacra and Simulation” by Jean Baudrillard to better understand the film’s themes.