Everything that has a beginning must have an end. After about an hour into The Matrix Revolutions, audience members might be checking their watches to reassure themselves that the slogan from the ad campaign is true.
The talk of endings in this, the third and ostensibly final movie in the series, is so insistent that you may wonder whether the Wachowski brothers, who wrote and directed it, felt the need to reassure the audience, and perhaps themselves, that it was really, finally over.
So, like too many great adventures, from Alexander's conquest of the world to Coppola's "Godfather" saga, the final stage doesn't so much end as bleed out. The only thing remaining is the corpse of our fond memories.