Films (movies) are an art form that have captivated audiences since their first introduction in the late 1800’s. Although digital recording has gained massive popularity among major movie-makers (and has all but taken over still photography) some of the greatest directors of our time are still using film; Wes Anderson, Christopher Nolan, and Steven Spielberg to name a few.

But have you ever wondered; What is film? What is made of? How does it work? If you have, this short video is for you. The team at “What is…..” (which appears to be a new YouTube channel as they’ve only uploaded this single video) offers a brief but surprisingly thorough explanation of what film actually is. Very interesting. Check it out below.

via PetaPixel