Heh...The Matrix. Nothing but an eye-candy waste of time. The first movie's premise was complete ass, as well was the elements. It showed the same technical idiocy as Johnny Moronic (Mnemonic) that only reinforces technological stupidity among the masses by the shitty script writers. You can tell they have no clue about networking or anything of the sort.
Anyone who has an idea of networking can laugh at the stupid "separate them from the Matrix and they die" bullshit that would essentially be the same as disconnecting anyways. The phone nonsense is incredibly unbelievable as uh...you need a return-route from the Matrix? Hello? Did they just suddenly leave their body to float around in the Matrix, or do the writers just have no clue about the basics of how computers work? Advanced or not, there's still things that will be the same.
For a technologically advanced race of computers/machines, they sure have worse security than Windows NT and IIS combined.
Onto the bio-eletric nonsense, the body would become majorly crippled and die if that was interrupted and drawn off too much. Which, the robots need that to run. I can name a number of other, more powerful fuel sources that wouldn't take up the space and give more return than the stupid plot device of those movies.
Basically, The Matrix is okay if you lobotomize yourself first and try to forget that most other sci-fi tries to have some basis in science before going into fiction. Instead, it just follows idiot Keanu's version of computers, which is just some flashy graphics and some buzzwords in some incredibly shitty plot devices. It's just about as bad as Johnny Moronic, perhaps worse because there are some people who have seen the movie and think that if your ISP connection is lost, your computer is fucked. Yes, a tech friend of mine got that call from an old lady who saw The Matrix and called a few days afterwards.
Some better sci-fi with a deeper story and setting you can really get lost in, try The City of Lost Children.