The original Infernal Affairs was a huge hit, locally and internationally, with a great plot, performed by some of the top Hong Kong talent, and delivered in a glossy modern production. Whilst to many students of Hong Kong cinema it might not have been the most original Police thriller they had seen, it was enough for Martin Scorsese to remake as The Departed. The prequel, Infernal Affairs II, built upon that initial story, expanding and building the narrative, and adding even more Star power.