The Matrix: Revolutions
J. Hoberman of the Village Voice: "Structurally a foretaste of the Lord of the Rings closer, the action alternates between the defense of Gondor (here Zion) and the drama of Sam and Frodo (a/k/a Neo and Trinity) heading for Mount Doom"
Yup, that's about it. Different palette. More computers and less acting. Same myth.