Sometimes you'll find that a picture is worth a thousand words. While Hollywood blockbusters are rarely historically accurate, popular films can still prove useful when trying to illustrate period clothing, warfare techniques, or more broadly, the spirit of the time period in question. Below is a list of films which I show, whole or in part, to my students. Whenever possible, I have provided a link to the film's information in the International Movie DataBase (IMDB).
I would also recommend against certain films, despite their broad appeal, due to the virtual absence of any historically accurate information either in the plot or in the set and costumes.