Sans soleil is a documentary directed by French audiovisual producer Chris Marker in 1983. In fact, Chris Marker is not his real name but he is just called a Chris Marker. The images taken in various countries in the 1970s were made in the 1980s as a documentary called Sans soleil. The title comes from a song by Russian composer Mussorgsky. So the soundtrack of the film contains Mussorgsky's music. The film is based on a set of footage taken by an audiovisual producer. While watching the act of the producer and the things he had seen in the form of a letter, audiences will understand his intention to recognize the world. The images are mainly taken in two countries, rich and poor. The rich country is Japan of which the images take a lot of time for this film, and the poor country is Guinea-Bissau of Africa. I wonder if the film is a documentary. But I think that Sans soleil, close to a documentary essay, is a very creative work in the way of looking at the world and accepting something visible, and it gives out the philosophical question to you regarding human memories.