Although audiences are more open now to unusual aspect ratios than 20 years ago, it remains to be an underappreciated and underutilized aspect of cinematography and filmmaking. In this video, I explain why I think that is, and go through the history, philosophy, home media use and value of aspect ratios. What was once a factor of technology and convenience, has become a creative choice in the age of digital cinema cameras. From Cinemascope, Vistavision and Cinerama up to modern changing aspect ratios and the resurgence of academy ratio, I explore the subject from every angle, using examples from filmmaker such as Kubrick, Xavier Dolan, Christopher Nolan and many others. I intend this video to be my fairly comprehensive analysis on this undervalued aspect of filmmaking.