This production image of U.S. actress Ann Savage comes from Detour, the 1945 film that helped define the classic femme fatale. The movie was shot in only six days, but her turn as the amoral hitchhiker Vera resonated with audiences. Over the decades since its release Detour has become one of the most popular low budget noirs of all time, in no small part because of its entry into the public domain as an uncopyrighted work that any television station can broadcast without paying royalties. But it also has survived because of Ms. Savage’s bravura turn as the female lead. Ann Savage died yesterday at age 87.