Actor Jesse Williams talks about his starring role in the new slasher horror film Random Acts of Violence, and shares why social activism has long been a part of his life. Musicians Joel Plaskett and Chris Murphy of Sloan honour their friend and fellow musician, the late Matthew Grimson, with a co-release of a new posthumous collection of his songs. World-renowned photographer Carrie Mae Weems discusses art, class and culture — and how she feels about being called an artist ahead of her time.