During this course you'll be watching several films that dramatize actual events. You may already know about the events and people involved, but if you don't it's helpful to do a little background research to familiarize yourself with these things to improve you're understanding of the films. This page offers some resources for doing so quickly.
Reviews are a good source of information about a film. Most often you'll find these in periodicals like newspapers and magazines.
Reference works can help you find out more about the people and events depicted in a film.