Neil Patrick Harris Joining 'Matrix 4'

Neil Patrick Harris is the latest name joining the cast of the next installment of "The Matrix." What part Harris will play is under wraps just like the storyline of the fourth installment to the series. 

Other names attached to the film are regulars Keanu Reeves and Carrie-Ann Moss plus "Aquaman" star "Yahya Abdul-Mateen II. 

There's no release date for the flick, but it's rumored that production for the film will start early next year.