Gael GarcÃa Bernal is a gift. No matter what he does he excels. The film demands one to be attentive and sentient, and yes as others have noted, it will in many cases force you to look up the real Cassandro. The supporting cast is superb in every aspect (even Bad Bunny!). The tone is spare, unsentimental and direct. It panders to no one except to truth. Bravo!