Yes, of course, you can always "Google" a film term. But specialized dictionaries like the ones listed here are written with film studies scholars in mind. Use these sources to dig deeper into the context of film terminology.
Use these collections to gather background information like actor/actress biographies, film overviews, film terms and definitions, film reviews, film credits, and more.
Gale Ebooks is a great place to check for overview articles. Use the link below and try a search using simple keywords.
Check the library's Reference collection to explore the following History of American Cinema series, a decade by decade look at film in history.