I maybe a little late, but I just recently heard about Enter The Matrix - The Video Game. From what it says, though it is not essential to Matrix Reloaded, in order to get the full effect of the Matrix, one has to play through this 20-30 hour game. However, that's not the only outside thing you have to do to get the "full effect", as the Wachowski brothers expected you to go watch Dreamcatcher to see the Final Flight of the Osiris, then log on the web to catch 4 other episodes of the Animatrix. Oh but there's more. 2 weeks after the Matrix Reloaded is released, they expect you to go out and buy the Animatrix DVD in order to watch the other 4 episodes not being released anywhere else. Then of course there's the 3rd movie which comes out in about another 6 months. All of this in the name of getting the "full effect" of The Matrix. Yes the tie in of so many medias is unique, but I'm starting to get this inkling feeling that it's less about being innovative, and possibly more about, let me see how should I put this? Milking something for all it's worth? Sounds just about right. Don't get me wrong, I'm incredibly excited about the new movie, and will probably go out and buy all of these things to get the "full effect" of course, but I just had to have my little rant. Thank you for your time.
"A sinister cabal of superior writers."