Master the ideas that have shaped the world of film today. In a series of 50 accessible essays, Helen O'Hara introduces and explains the central ideas, eras and genres of film, beginning with the invention of cinema to the theories and genres that have emerged and evolved since. From concepts such as the mise-en-scène and special effects to Queer Film Theory and the #MeToo movement, 50 Film Ideas You Really Need to Know is a complete introduction to the most important tenets of film and cinema history.