For anyone who's never seen it, this is an amazing documentary, one of my favorites, presented by Keanu Reeves, I think he may have also been a producer on it, and it's essentially a movie about the history of film formats, specifically film versus digital. I think it came out about 10 years ago, right around the time when digital cameras became the norm in films, in blockbuster movies, in high-budget movies and when they started to take over very much from traditional film cameras made by Ari and Panavision using film stock. It's a wonderful documentary, can't recommend it enough. If you haven't seen it, check it.