This document outlines the theoretical frameworks and main schools of thought regarding the relationship between film and literature. It discusses the precursors to film theory from the avant-garde, Russian formalism, and early 20th century writers. It also summarizes the influential semiological and narratological studies from thinkers like Christian Metz, Umberto Eco and Roland Barthes. Finally, it examines some of the key linguistic differences between film and literature, such as their approaches to space, time, and point of view, as well as some extra-linguistic aspects like their modes of creation and reception.