Families offer homestays, while shepherds in remote mountain pastures put up guests in yurts – a sort of wigwam b&b on the Silk Road.

B: Yes, then, at the traffic light, turn right onto Ocean Road.

Pitt is a producer on the project through his Plan B film company, and British filmmaker Michael Winterbottom, whose credits include "Welcome to Sarajevo" and "The Road to Guantanamo," is directing.