guard

His films like 'Rashomon' and 'Seven Samurai' deeply explore themes of protection, duty, and the moral complexities of those who guard society.

His work obsessively examines surveillance, control, and the psychological dynamics of watching and being watched as instruments of power and protection.

His films 'Sicario' and 'Prisoners' intensely explore the burden of guardianship, protection at any cost, and the moral ambiguity of those who defend boundaries.