Subject headings allow you to search the library catalogue for resources on a particular topic and are often more productive that keyword searches.
To locate material on visual culture and gender, you could use the following subject heading, and then browse the additional subject headings that will also be retrieved by this search:
feminism and art
For finding material on a particular topic within feminism and visual culture, such as film, you could use the following subject headings to help you find relevant items:
feminism and motion pictures
feminist film criticism
feminist motion pictures
motion pictures and women
women in motion pictures