Shortly before filming was to begin on "Rashomon," Akira Kurosawa's three assistant directors came to see him. They were unhappy. They didn't understand the story. "If you read it diligently," he told them, "you should be able to understand it, because it was written with the intention of being comprehensible." They would not leave: "We believe we have read it carefully, and we still don't understand it at all."
Recalling this day in
Something Like an Autobiography, Kurosawa explains the movie to them. The explanation is reprinted in the booklet that comes with the new Criterion DVD of "Rashomon." Two of the assistants are satisfied with his explanation, but the third leaves looking puzzled. What he doesn't understand is that while there is an
explanation of the film's four eyewitness accounts of a murder, there is not a
solution.
Kurosawa is correct that the screenplay is comprehensible as exactly what it is: Four testimonies that do not match. It is human nature to listen to witnesses and decide who is telling the truth, but the first words of the screenplay, spoken by the woodcutter, are "I just don't understand." His problem is that he has heard the same events described by all three participants in three different ways--and all three claim to be the killer.
http://www.rogerebert.com/reviews/great-movie-rashomon-1950