Answer
"The Time Traveller's Wife" is indeed not a work by D.W. Griffith. Griffith was a pioneering American film director and producer who made significant contributions to the early development of cinema. He is best known for directing silent films like "The Birth of a Nation" (1915) and "Intolerance" (1916). On the other hand, "The Time Traveller's Wife" is a science fiction novel written by Audrey Niffenegger and published in 2003.