All Men Are Mortal by Simone de Beauvoir
When the beautiful, ambitious actress Regina takes Fosca into her life and learns his amazing truth, she is obsessed with the thought that in his memory her performances will live for ever. But, as he recounts the story of his existence over more than six centuries, as she learns of his involvement in some of the most significant events in history and how human hope and love have withered in him, she finally understands the implications for him and for love.
ALL MEN ARE MORTAL was filmed in 1994, starring Irene Jacob, Marianne Sagebrecht and Stephen Rea.