A real power station in Sydney (the White Bay Power Station) was blown up for the - what else - power-station-blowing-up scene. It was slated for demolition anyway and the film makers requested that they organise it and film it. A lot of people got quite excited about it and turned out to watch it all happen, but in the end it was a bit of a let-down - it's obviously been enhanced for the film.

At least two points in the movie the number 101 is shown ... 101 was the apartment number of Neo in the first movie. In addition, the freeway race is on the 101 and the 303 (Neo-1, Trinity-3). In addition, 101 is the binary number for 5. 5 Matrixes have already passed and the current one is number 6.

In the highway chase scene, the license plate on the Twins' truck said DE2852. If you look in Deuteronomy 28:52 (NIV), it says, "They will lay siege to all the cities throughout your land until the high fortified walls in which you trust fall down." This is possibly making reference to the sentinels coming to attack Zion, which up until the end of Reloaded, has been the humans safe haven and their "high fortified walls" against the machines.

A freeway was built on a military base in California specifically in order to film the freeway chase scene. It was built as a continuous loop that is about 2 miles of freeway. This also explains why you see some of the background repeating.

In the scene where Neo has his talk with the Architect you can see scenes from the original Matrix on the TV screens that cover the wall.

The twins are a reference to Alice in Wonderland's twins Tweedle Dum and Tweedle Dee.

In the scene were Trinity is fighting the agent in the building having just disabled the grid, when she is fighting and throughout the entire movie there is no visible place to store a gun or two guns as big as the ones she pulls out as she falls down the building, in such a tight suit.

When the Keymaker is explaining the process that Neo must use to get to the source, he says that the door for the architect will only be open for 314 seconds. The mathematical constant, pi begins with 3.14. Coincidence?

When the meeting with the Merovingian takes place look at the windows behind him, the green panes seem to be two-tone with a darker shade running parallel to a lighter one horizontally, it appears to look like the code of the matrix

When Neo, Trinity and Morpheus arrive at the Merovingian's resturant, the camera pans left oddly from the main table to show a man walking away, looking over his shoulder at Neo. This man is the father of Seti from Revolutions. Kind of interesting, since in Revolutions, the father mentions his meeting with the Merovingian.

One night on the 2 mile stretch of highway made for the movie, a security guard decided to race his car up and down when no one was around. He did, but he totalled his car and instead of telling anyone, he just ran off and was never seen again. (A little bit of info from Keanu Reeves on an interview on the Tonight Show).

When Trinity is messing around with the nodes, the root password is "z10n0101". Can you see the reference?

The first movie contained several references to Alice in Wonderland. In Reloaded, when we first encounter the twins in the restaurant, they are smoking a hookah pipe, like the caterpillar did in Alice in Wonderland.

The 'twin' characters are non-film actors, but carpenters by trade, whose only other screened work was on UK TV programme Carol Vorderman's Better Homes (DIY show). They have done some stunt work, but got the part when the makers of the film were looking for identical male twins who were both skilled in martial arts.

In "The Matrix," Smith tells Morpheus several interesting things when they are trying to get the access codes for Zion. When he is talking about the humans, he says what he hates is the smell. "I feel I have somehow been infected by it. It's repulsive. I must get out of here, I must get free." Later he says "Once Zion is destroyed there is no need for me to be here." These are all foreshadowing for Reloaded and Revolutions.

The long haired white wearing goon of the french speaking guy is Reeve's martial arts trainer for the movies.

When the three agents arrive and Neo fights with them, he kicks the final agent into a lamp post. The camera pans to the very top of the lamp post, as the glass falls down the top of the lamp post reads: "Darrow Industries" This is an homage to Geof Darrow, the graphic artist for the films.

When they are in the matrix the sky and buildings and everything is a shade of green to match the matrix code.

The translation of the word "Vigilant" (the ship of Captain Soren) is "giving careful attention to what is happening, so that you will notice any danger or illegal activity." The people outside the Matrix are well aware of the situation (war), so they are vigilant. The people in the matrix are oblivious ("billions, just living our their lives." - Agent Smith).

In a Dateline Special on the special effects of the Matrix Reloaded, host Stone Phillips stated that the special effects shots were not completely done until three weeks before the release date of the movie.