Samsara was shot on film. 4K scans exist, but many modern streaming versions (Netflix, Amazon) use excessive Digital Noise Reduction (DNR). The GECKOS 1080p release strikes a perfect balance. It retains the organic texture of the 70mm stock without introducing macroblocking. The x264 encode looks "filmic" rather than "digital."
MacDonald, Scott. The Garden in the Machine: A Field Guide to Independent Films about Place . University of California Press, 2001. (For analysis of ecocinema and non-narrative film). Samsara.2011.1080p.BluRay.x264-GECKOS -PublicHD-