The evolution of film to digital is an amazing story and without truly understanding film you won't understand digital cameras. Everything in digital cameras are based on how film was recorded especially specific settings such as, shutter speed, aperture, ISO and even many more things. You need to study the past to truly understand the future.
The documentary Side by Side takes you on a journey from film cinema to the digital age we are currently in now. The story touches on subjects such as color correction, cgi, original "films" shot on video and even more. Better yet the documentary is told by those who actually fought for and against the revolution of film into digital media. I personally have seen this documentary over a dozen times and consider it a huge part in my understanding of cinema today. If you have a netflix account, it streams. Take the journey from where we were to where we are now.