It was reported that Keanu ReevesKeanu Reeves volunteered to give up a claim to a share of ticket sales amounting to around $38 million when producers feared that the film would never recoup the cost of the special effects.
Trinity uses a genuine hack to get into the Matrix. She uses Nmap version 2.54BETA25 (an actual port scanning tool) to find a vulnerable SSH server, and then proceeds to exploit it using the SSH1 CRC32 exploit from 2001.
Eva MendesEva Mendes, [?] Samantha Mumba, Brandy NorwoodBrandy Norwood and [?] Tatyana Ali were all rumored to be possible replacements for the character of Zee, after the initial choice [?] Aaliyah died in a plane crash on 25 August 2001. Nona GayeNona Gaye (daughter of late Motown legend [?] Marvin Gaye) was eventually cast in the role.
Only a few of the Smith clones were actually played by Hugo WeavingHugo Weaving. Open casting calls for males with similar body shapes and structures took place, and Weaving's head was superimposed on them later.
The film's highway chase sequence took almost three months to shoot (longer than many films' entire shooting schedule).
When Morpheus' ship the Nebuchadnezzer is destroyed, the line he states "I had a dream, but now the dream is gone from me" is alluded to in the Book of Daniel, where King Nebuchadnezzar has a dream of the Golden image that Daniel interprets for him.