This list is "an educational resource that offers guidance and encouragement as students seek to find points of orientation within the vast history of film and video." It is not a list of the best films of all time. Rather, it reflects a variety of criteria.
Source: https://ves.fas.harvard.edu/files/ves/files/fvs_suggested_viewing_2012.pdf
http://www.bfi.org.uk/news/50-greatest-films-all-time
Originally from my time at filmtipset.se
A list for the Masters of Cinema releases in blu-ray format
Roger Ebert - The Great Movies
by hulkhorgen