'Specks of Dust,' a documentary by Princeton University junior Azza Cohen and Class of 2014 graduate Shaina Watrous, will have its premiere screening at 7:30 p.m. Thursday, April 23, in McCormick Hall, Room 101 and at 7:30 p.m. Saturday, April 25, in the James M. Stewart '32 Theater at 185 Nassau St. Free tickets are available at Frist Campus Center. The documentary follows the lives of individuals fighting for justice for the survivors of human trafficking in Varanasi, India. The film was inspired by Cohen's and Watrous' participation in Princeton's Bridge Year Program, where they spent nine-months in India doing community service work at the nonprofit organization Guria. Guria's founder, Ajeet Singh, also is expected to attend the film screening.