History 335 Motion picture industry 126 Social conditions 121 Motion pictures 96 Race relations 71 Social aspects 68 Mexican Americans 55 mer ... African Americans 54 Ethnic relations 45 Politics and government 44 History and criticism 43 Social life and customs 38 Immigrants 32 Buildings, structures, etc 28 Ethnic identity 27 City planning 26 Motion picture actors and actresses 25 Motion picture producers and directors 24 Photograph collections 24 Architecture 23 Gangs 23 Manners and customs 23 Police 22 Hispanic Americans 20 Motion picture studios 20 Political aspects 20 Art 19 Korean Americans 19 Production and direction 18 Art, American 16 mindre ...