Those behind the long-gestating fourth entry that will make The Matrix trilogy not be a trilogy anymore are busy filming the new movie.

The behind-the-scenes footage below was caught in San Francisco, featuring Keanu Reeves, Carrie-Anne Moss and a whole bunch of extras.

The Matrix 4, directed by Lana Wachowski, is currently scheduled for release in May 2021.

The Matrix movies at JB Hi-Fi.