Currently shooting a Documentary on a mountain rescue team and locations have often been a day or more hike away from electricity with temperatures averaging -8 or 9 dipping to -14 and well into the -20's when factoring in windchill. When it came to testing and pre-produciton tested the Amira and Alexa as well as 2-perf 35mm on the Aaton Penelope, also had my BMCC which i had planned on using as a B-Cam. The BMCC and Arri's needed batteries changed constantly where as with the Penelope the 2 onboard batteries lasted a full 2 days and they still did not even start warning that they are low and even when low they will still shoot at least 800ft of film (2 mags) so practically in keeping the kit as lightweight as possible and not needing to lug block batteries up and over mountains in snow film became a really practical choice, also the batteries are pretty small iPhone with a rugged case size (a really rugged case) but pocketable which also keeps them warm and more juiced between takes during hikes. The images from testing even the BMCC all looked wonderful but film had a certain aesthetic that fitted the harsh environment and the snow perfectly and seemed to deal better with extreme highlights when the sun would glare and reflect in the distance of snow or get really bright due to spindrift in the air etc. also the subbtle grain of 50d really added a extra layer of texture to the thing snow flying everywhere infront of the lens and sticking to people and things. Cost wise the camera package as well as zeiss primes and everything was given to us by the rental house at a absolute steal 1/3rd of the price of the cheapest Alexa package which would have had lesser lenses and then we would have had to factor in needing laptops etc. out in the middle of nowhere to somehow sort and transcode for us with no power so when factoring in this even with lab costs and stock which we got discounted as re-cans from Star Wars Episode VII we have actually come up under the price of a Alexa kit not by 1000s of pounds but enough to make it viable to shoot film obviously we are limited in that we have a certain ammount of stock meaning a much lower shooting ratio but this so far has been a beautiful limitation but it may bite us in the ass in the coming shoots etc. TL:DR its not as expensive as you might think, if it works for the benefit of the final image and for a smooth production workflow its worth it, it has a look that suits some things more then digital and vice versa do not discount it.