Rich Hardy, writing on the New Atlas web site, explores the resurgence of interest in the long-dormant 70mm film format by today's retro movie-loving directors such as Quentin Tarantino and Christopher Nolan. There was a time when Hollywood embraced the magnificent widescreen format for some of the most ambitious epics ever filmed. However the cost of shooting in 70mm made the format virtually extinct until recent years. Tarantino brought 70mm back for "The Hateful Eight" and had to practically move mountains to find a way to have his film projected properly, given that most of the equipment and venues that once were associated with the widescreen process were long-gone. Now Christopher Nolan is presenting his WWII epic "Dunkirk" in 70mm. This article provides short history of 70mm and some useful information about the various formats the movie is being shown in. Click here to read.