Fight Club (1999) was the revolutionary use of photogrammetry, A first CGI first person image based modelling technique.
The Matrix (1999) VFX shots took up about 20% of the film. It used VFX shots and techniques such as flow-mo, bullet time, slowed down rotation action, time freezing, camera tracking, background.
The Mummy (1999), the most realistic digital human character seen to date then.
Star Wars (1999), over 2000 digital shots and a fully CGI character Jar Jar Binks
Hallow Man (2000), included the first anatomically correct, totally working, 3D computer model of a human body
O Brother, Where are Thou (2000), the first film to be totally colour corrected.