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After the war , he returned to France where he made his last two films : the two-part war film Le Bataillon du ciel , based on the book of the same name by Joseph Kessel , and L'Idole , starring Yves Montand .
 Joseph Kessel, Yves Montand
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Joseph Kessel, Yves Montand