rival gangs

His films like Gangs of New York and The Departed profoundly explore territorial conflicts, loyalty, and violence between rival criminal organizations.

His yakuza films, particularly the Deadman Deadman series, intensely examine gang hierarchies, honor codes, and brutal conflicts between competing syndicates.

His Hong Kong action films like Hard Boiled and The Killer depict stylized gang warfare with emphasis on rival loyalties and operatic violence.