Fun with License Plates
Towards the beginning of the movie, Agent Smith pulls up in a car. His license plate reads "IS 5416". In the King James Bible, Isaiah 54:16 says: "Behold, I have created the smith that bloweth the coals in the fire, and bringeth forth an instrument for his work; and I have the waster to destoy".
Password for Original Matrix Website
In the big car chase, right before they get to the main freeway, there is a billboard in the background with a cow and the word "STEAK" on it. "STEAK" was one of the passwords used to gain special access to the original Matrix movie website.