Through A Lens DarklyThrough A Lens Darkly: Black Photographers And The Emergence Of A People had its world premiere at Sundance last month, and now an Oscar-nominated filmmaker has come aboard. John Singleton will executive produce the documentary, which has its Los Angeles premiere tonight at the johnsingleton_150x207.jpgPan African Film Festival before making its international bow tomorrow in the Panorama section at Berlin. Thomas Allen Harris’ film examines the way black photographers and their subjects have used the camera as a tool for social change from the time photography was invented to the present. “I was moved by the film, these artists and what their work means to me and to the world at large, ” said Singleton, who earned an Academy Award nominations for Boyz N The Hood. “This documentary highlights the ongoing battle that black people face defining themselves image-wise.”