This document provides an overview of key concepts in documentary film studies. It defines documentary film as the study of film language and how it relates to capturing reality. It discusses documentary filmmaker techniques like selection and construction that influence representation of real events. It also presents common exam questions on topics like whether documentaries can truly capture reality and if they are objectively constructed. Additionally, it outlines various modes of documentary like poetic, expository, observational, and reflexive. Finally, it discusses how representation in documentaries is mediated and how that representation may differ from reality.