Georges Sadoul is widely regarded as the father of film history for his pioneering work in the field, including his book "Histoire du cinéma mondial" (1946).

Andrew Sarris is known for his work on the auteur theory, which emphasizes the role of the director as the primary creative force behind a film.

David Bordwell is the author of the book "Film Art: An Introduction", which is a widely used textbook in film studies.

Bill Nichols is known for his work on the history of documentary film, including his book "Representing Reality: Issues and Concepts in Documentary" (1991).

Pauline Kael is considered one of the most influential film critics of the 20th century for her sharp wit and her ability to connect with a wide audience.

Manthia Diawara is known for his work on the history of African cinema, including his book "African Cinema: Politics and Culture" (1992).

Dudley Andrew is the author of the book "The Film Experience: An Introduction", which is a widely used textbook in film studies.

P. Adams Sitney is known for his work on the history of experimental film, including his book "Visionary Film: The American Avant-Garde" (1974).

Sergei Eisenstein is considered one of the most influential film theorists of the 20th century for his work on montage and his theory of "intellectual cinema".

Paulo Antonio Paranaguá is known for his work on the history of Latin American cinema, including his book "Cinema of Latin America" (2003).

Kristin Thompson is the author of the book "Film History: An Introduction", which is a widely used textbook in film studies.

David Bordwell is known for his work on the history of Asian cinema, including his book "Planet Hong Kong: Popular Cinema and the Art of Entertainment" (2000).

A. O. Scott is considered one of the most influential film critics of the 21st century for his thoughtful and insightful writing.

B. Ruby Rich is known for his work on the history of queer cinema, including his book "Chick Flicks: Theories and Memories of the Feminist Film Movement" (1998).

Mark Cousins is the author of the book "The Story of Film: An Odyssey", which is a comprehensive history of film from its beginnings to the present day.