Originally Posted By: tsuwm

(without looking at the link)
It depends on your definition of movie.
There are art movies that go for days, you know, those nihilistic arty farty meaningless pieces of concept 'art' that involve no more skill that turning the camera on and off.

But if you only include 'real' movies, that is ones that show in a cinema or on TV, they are a lot shorter.

Then, do you include ones that were shown as serials? There was a Chinese movie called The Burning of the Red Lotus Temple that went for 27 hours (must have been a slow fire!) but was serialised over four years from 1928-1931.