A lot of very minor edits were scattered throughout, mainly tightening up scenes. For example, some dialogue from an earlier scene between Charlie and Olivia was cut.
The opening title sequence was completely new (you can see the original version here).
Four big changes were added to the story line:
- Olivia tears up seeing John for the first time after the explosion, reinforcing her feelings for him
- The entire Steig interrogation scene with Oliva Dunham and
Jack BauerPeter Bishop
- Most of the audio from Steig's tape recorder
- The scene where the dead Agent Scott is wheeled away into the "Leaf" room
Massive Dynamic not only changed names (from Massic Dynamics), they changed locations. The original building was modeled after the The Royal Ontario Museum, where as the new building is a typical New York skyscraper.
The Synaptic Transfer sequence has subtle changes, mostly a darker mood. The inscription on the Kayak changed from CONSTANT 1.61803 to ZENO, the tombstone changed from BLANK to HE'S NOT DEAD, and the screen monitoring John and Olivia got a makeover (although you can still see the old screen in some shots)
Nina Sharp's robotic are got a slight makeover, making it a little more see-through.