This is a fantastic documentary which provides a window into the technical elements of the way an image is captured by cameras for motion pictures. Most of us are aware that there are two mediums- film, - which has been the method of application up until the last decade or two, and digital- which is trying to supplant film. It is an interesting look at the junction of art and science to create a feature film and the kind of hurdles these mediums, and the people using them have to overcome. Keanu Reeves is an excellent host and the usually drab actor seems full of energy here, asking furtive questions and giving feedback and opinion. There are a host of subjects interviewed here, from legendary filmmakers and cinematographers to producers and movie moguls. I prefer the look of film stock and will side with it, but there is no denying the strides digital cameras have made in recent years. And perhaps the greatest takeaway from this documentary is that it doesn't really matter what medium you shoot on- it is the person behind the camera that matters.