These books discuss film theory/history. Please search the library catalog, for more books and articles on the topic.
Film: A Critical Introduction
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A History of American Movies
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This guide will give you info on films relating to a social issue or theme, movie reviews, and critical commentary about films.
Source: Wikimedia Commons [1951 movie poster for "The Day the Earth Stood Still"]
A few hand-picked website to get you started in exploring film...
Films Selected to the National Film Registry: 500+ films and counting, this list provided by the National Film Preservation Board shows all the movies that have been selected for special preservation measures because of their cultural or aesthetic impact.
The Great Movies: Roger Ebert's series about films that made an impact. Covers a broad range of times, mainstream and independent films, and from countries all over the world.
Filmsite: Useful for its accessibility and breadth, but occasionally glib or inaccurate about key points of film history.
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