Taking the term "black and white" quite literally, director Zhang Yimou returns to familiar ground with a period action-drama in which everything on screen is either white or black or grey and all of it is beautiful. The tale of a "shadow", a lookalike of the commander of the army of Pei who is asked to live as his double to prevent him from any assassinations, the story has a few loopholes and it's at the same time too simplistic and too convoluted to incorporate the various twists.
The writing during the film's dramatic moments, however, is wonderfully tight and effective. Yimou's direction is assured and restrained at the right times, someone who knows what he's doing and that he's doing it well. The action is beautifully conceived, choreographed and executed (if a little over the top at times) and there's beautiful use of slo-mo just the right number of times (compared to wayyyy too much usage of it in another MAMI action film, Mard Ko Dard Nahi Hota).
Overall, a solid entertainer with great performances, good drama, great action and wonderfully pleasing to the eye.