Documentary-style films 26 Human rights 12 Politics 8 Health 5 Race relations 5 Religion 5 Gender identity 4 更多 ... Music 4 Sociology 4 Anthropology 3 Nature 3 Sports 3 Foreign language films 2 Globalization 2 History, Military 2 Latin American 2 Criminal justice, Administration of 1 Environmental sciences 1 Food industry and trade--Technological innovations 1 Indigenous peoples--Cross-cultural studies 1 Midwifery 1 Motion pictures 1 Performance art 1 少 ...