You'll likely find a combination of scholarly and popular sources that talk about the film you are researching. To find scholarly research articles, you will want to look in academic databases. Film history is also documented online by a variety of reputable sources. Be sure to use a combination of sources for your project!
There are several ways to go about searching in library databases: Keywords, Subject Terms, etc. Here a few examples:
These are terms that may be used to locate materials on your topic through Primo or the library's databases (e.g., Academic Search Premier, Communication and Mass Media Complete, etc.).
[topic] in motion pictures:
Film genres (or specific genres such as western films):