This is quite an interesting thread!
My take is as follows:
Consider that light is a wave. Each photon therefore has energy which is directly proportional to the wavelength. The absolute value of this energy is not a precise value as far as the human ability (in making detectors) is concerned. Further, the fact that the photon waveform can take its wavelength from an infinite set of possible lengths defines the fact that it's absolute wavelength, and hence energy, can never be completely known.
Electrons, whilst it is thought that they have unit charge, and are discrete entities, are in fact not fully understood. Take for example, the value of it's charge is 1.6 blah blah blah x10^-19 coulombs, the absolute value of it's charge is still undefined. Equally, one can never know the position and momentum, or energy at a time, to below the accuracy of hbar. Equally, digital devices that work by the counting of electrons can be considered digital, as the counting of single electrons can be achieved. It is the physics underpinning the more fundamental properties which are subject to the uncertainty principle.
Film works by capturing photons, and a chemical reaction takes place which uses the energy of said photon to define the amount by which that reaction takes place. Ignoring the type of reaction that takes place, and knowing that the photon energy can never be known fully, Film is by that definition, an analogue recording medium.
Equally however, there exists a finite amount of atoms on a piece of film, and this is fact. Whilst it may be impossible, or at least monumentally difficult, to count them all, the number is finite. Therefore one could now suggest that the chemical reaction between two atoms/molecules/whatever has either occurred or has not occurred. However, the amount of energy taken from each photon can't really be fully known, nor whether or not a photon deposits all or part of its energy on an interaction event.
So, imho, I think it's fair to say film is analogue due to the simple fact that so little can be known about the process, as a whole, to an absolute value.
Oh and btw?:
[18:12:00] <Marcel_> Woodsy:
[18:12:08] <Marcel_> Tell em I sent you.
