The Philadelphia Film Festival is set to return for its 31st anniversary from Wednesday, Oct. 19 through Sunday, Oct. 30. Tickets go on sale Monday, Oct. 10 at noon. 'Till,' the long-awaited biographical film telling the story of Mamie Till's activist journey in the wake of the lynching death of her son, Emmett Till, will be featured among more than 130 movies playing at Philadelphia Film Society venues.