Hugo Weaving and Laurence Fishburne do not return for "The Matrix 4" – but the movie features new versions of their characters. Here's why.

The Matrix 4 follows Matrix Reloaded and Revolutions, and doesn’t quite bring back Hugo Weaving’s version of the Agent Smith character. Instead, it uses Jonathan Groff to say something new ...

The agent-spotting program is full of twins In order to teach Neo how to tell a Matrix Agent apart from a Matrix civilian, Morpheus fires up an Agent-spotting training program.