Kippur (כיפור) is a 2000 Israeli drama war film directed by Amos Gitai. The storyline was conceived from a screenplay written by Gitai and Marie-Jose Sanselme; based on Gitai's own experiences as a member of a helicopter rescue crew during the 1973 Yom Kippur War. The film stars actors Liron Levo, Tomer Russo and Uri Klauzner in principal roles.
The film Kippur is an autobiographical work by Gitai.
The reason my statement is neither definitely correct or definitely incorrect is that the film is based on Gitai's own experiences but it doesn't state in the original statement if the film is completely autobiographical or not.  The film may or may not have fictitious events not based on Gitai's life.  We do not have enough information to make that determination.  
( z1 work :ARG0 ( z2 person :name ( z3 name :op "Gitai" ) ) :ARG1 ( z4 film :name ( z5 name :op "Kippur" ) ) :mod ( z6 autobiographical ) )