A film historian is an expert who studies the history, development, and impact of cinema. They analyze films, directors, and movements, exploring how cultural, social, and technological changes have influenced filmmaking. Their work often involves researching archives, reviewing scripts, and examining film techniques to understand the evolution of the medium. Film historians contribute to the preservation of cinematic heritage by writing books, articles, and documentaries. They may also teach courses on film studies, sharing insights about influential figures like Alfred Hitchcock or movements such as Italian Neorealism. Their research helps audiences appreciate the art and significance of films throughout history.