Yes, it is really spelled that way: eXistenZ. It is the name of a video game made by jennifer jason leigh's character in the movie. You basically port your own body into the game through an umbilical cord like flesh string and you go to sleep in the real world but wake up in the video game world. Jude Law was fairly good in the movie as the sidekick to Leigh's character. I really disliked the ending though. It took a few too many twists and turns for my liking. Overall it was not bad. I rate it a 7 out of 10.