Güeros is a film of self-discovery with many tender moments , but mostly it is a shockingly honest depiction of the grim realities of Mexico City - the complex monster it really is behind the thin façade of flashy hotels and stunning modern architecture of the main boulevards. This picture simply HAD to be filmed in black and white in order to convey what people have to live through from day to day, and the various coping mechanisms they develop, from drug addiction and alcoholism to self-defeating student protests....and a (pointless?) search for a long past-it musical hero.
Absolutely excellent film even if, sadly, many of the nuances will be lost on people who have not lived in Mexico ( or another Latin American city), much in the way that Mike Leigh's films can only be truly appreciated if you have lived in England. But I entreat you to watch it anyway, it is an exceptional film with many layers of interest and acute character observations.