My Autobiography is a book by Charlie Chaplin, first published by Simon & Schuster in 1964. Along with Chaplin: His Life and Art, it provided the source material for the 1992 feature film Chaplin. It is a revealing work into the life of a 20th-century celebrity. Chaplin wrote, " In Philadelphia, I inadvertently came upon an edition of Robert Ingersoll's Essays and Lectures. This was an exciting discovery; his atheism confirmed my own belief that the horrific cruelty of the Old Testament was degrading to the human spirit "