If you enjoyed the movie, try reading the book. Same basic story but told from the perspective of Arctor himself. It's a great dive into the mind of an addict.
The movie doesn't come close. Vividly, sympathetically depicts a downward spiral and brain-damage from drug abuse. Full of amusing, provocative details. Cons: It was a downer for me.
Awesome storyline and the movie has a star-studded cast. Visually hypnotic all the time. Cons: In the film, Reeves fails to draw any intrigue... as usual.