El botón de nácar
- वर्ष: 2015
- देश: Chile, France, Spain, Switzerland
- शैली: Documentary
- स्टुडिओ: France 3 Cinéma, Ciné+, Mediapro, Atacama Productions, Valdivia Film, Consejo Nacional de la Cultura y las Artes, CNC, RTS, France Télévisions, WDR
- कीवर्ड: indigenous, concentration camp, dictatorship, chile, genocide, south america, button, colonialism, british colonialism, indigenous peoples, colonization, political prisoners, cultural genocide, water, settler colonialism, patagonia, kawésqar
- संचालक: Patricio Guzmán
- कास्ट: Patricio Guzmán, Martín G. Calderón, Gabriela Paterito, Gabriel Salazar, Claudio Mercado, Raúl Zurita