The matrix is one giant clusterfuck of theological and philosophical underpinnings.
It's basically a post-modern existentialist movie, with the twist being that there is a definable reality (Zion). In most post-modern stuff, the whole point is there is no absolute reality.
The Matrix series is great for these reasons.
People who didn't like the last 2 usually don't like this kind of stuff, because that's what made the last 2 so outstanding imo.
The first one is still the best though
