List of longest films
Experimental films

Title
Running time
Year released
Notes
Logistics
51420 min (857 hr / 35 days, 17 hours)
2012
-
Modern Times Forever
14400 min (240 hr / 10 days)
2011
-
Beijing 2003
9000 min (150 hr / 6 days, 6 hours)
2003
-
Untitled #125 (Hickory)
7200 min (120 hr / 5 days)
2011
-
Matrjoschka
5700 min (95 hr / 3 days, 23 hours)
2006
-
The Cure for Insomnia
5220 min (87 hr / 3 days, 15 hours)
1987
-
The Longest Most Meaningless Movie in the World
2880 min (48 hr / 2 days)
1968
-
**** (Four Stars)
1500 min (25 hr / 1 day, 1 hour)
1967
-
24 Hour Psycho
1440 min (24 hr / 1 day)
1993
-
The Clock
1440 min (24 hr / 1 day)
2010
-
Happy
1440 min (24 hr / 1 day)
2013
-
Crude Oil
840 min (14 hr)
2008
-
Bordeaux Piece
823 min (13 hr, 43 min)
2004
-
How Yukong Moved the Mountains
763 min (12 hr, 43 min)
1976
-
The White House
690 min (11 hr, 30 min)
2006
-
Circus Savage
643 min (10 hr, 43 min)
2009
-
Paint Drying
607 min (10 hr, 7 min)
2016
-
Empire
485 min (8 hr, 5 min)
1964
-
Baa Baa Land
480 min (8 hr)
2017
-
Imitation of Christ
480 min (8 hr)
1967
-
Sleep
480 min (8 hr)
2013
-
The Wake
462 min (7 hr, 42 min)
2000
-
Lamentations: A Monument to the Dead World
435 min (7 hr, 15 min)
1985
-
The Movie Orgy
420 min (7 hr)
1968
-
Star Spangled to Death
402 min (6 hr, 42 min)
2004
-
A Lot of Sorrow
369 min (6 hr, 9 min)
2013
-
River of Fundament
352 min (5 hr, 52 min)
2014
Including two 20-minute intermissions
Sleep
321 min (5 hr, 21 min)
1963
-

Question: What films are eight hours long?
Answer: "Baa Baa Land''s length of eight hours has it the nineteenth-longest film, the same length as 1967's film "The Imitation of Christ" and 2013's "sleep."