Culturally responsive research and pedagogy are a challenge in classrooms that are increasingly heterogeneous. I start from the premise that culture is dynamic not static, that difference is a resource for new ways of doing, thinking and believing, that identity is hybrid. The challenge for teachers is how to harness the productive potential of diverse classrooms for pedagogy. John Thompson (1990) argues that discourses of "unification" which construct an "us", and discourses of "fragmentation" which construct a "them", produce and maintain relations of power. Us/them discourse will be explored in the South African context in relation to both apartheid's racial othering and post-apartheid's xenophobic othering. The South African film, "District Nine", which can be interpreted as both forms of othering, is presented as a case for considering these ideas. (Contains 4 figures, 1 table, and 2 footnotes.) ["'District Nine' and Constructions of the Other: Implications for Heterogeneous Classrooms" was written with Roseline Adegoke.]