I praise Hollywood for creating a movie that does not have mass appeal. Too often movies of this type are designed to be for too wide an audience and all credibility is lost. This film avoids this, for the most part, by primarily appealing to a core target audience in the 15 to 35 age range.
The credits sequence began and I immediately cringed and thought, "Hacker 2...ugh." but it didn't turn out that way, much to my pleasure. Horrible computer idiocy was kept to a minimum, and generally only used for dramatic effect rather than the "computerz r kewl" aspect.
The dramatic performances were very good in my opinion and the film was superb in creating suspense. The soundtrack is rather excellent as well.
By my guess, huge changes were made to this film (based on the trailer) and I look forward to seeing an alternate version or cut-scenes on the DVD.
I definitely recommend this movie for anyone who likes technology and computers. For everyone else, I don't know if you would like it, honestly, but I can tell you it's not a whole movie about computers.