Film theory explores how film relates to reality and other art forms, as well as how individual viewers and society experience film. Some early contributors to film theory include French philosopher Henri Bergson in the early 1900s and directors from the silent film era who emphasized how film differs from reality. In later decades, film theory drew from disciplines like psychoanalysis, gender studies, and linguistics. Recent film theory has reexamined concepts like how celluloid captures moments in time and has offered new perspectives on gaze and early cinema spectatorship.