According to 'Variety,' the 'Aquaman' star has nabbed a lead role in the film. He joins returning lead actors Keanu Reeves and Carrie-Anne Moss. Reeves and Moss will reprise their roles as Neo and Trinity from the previous movies. Lana Wachowski, who co-directed the franchise's first three films, is on board to helm the fourth. Details about the movie's plot and who Abdul-Mateen II will be playing have not yet been revealed. 'Matrix 4' filming is scheduled to begin early next year. Abdul-Mateen II can also be seen in the upcoming HBO series, 'Watchmen.'