Some of Hollywood's most powerful stars will join forces Friday night for the annual Stand Up To Cancer telecast.<br />Created in 2008, the charity raises money for cancer research by getting together entertainment industry figures for a telecast.<br />CNN reports, Bradley Cooper is returning as the event's co-executive producer. Scheduled participants include Mahershala Ali, Jason Bateman, Kathy Bates, Josh Brolin, Katie Couric, Jennifer Garner, Jon Hamm, Matthew McConaughey and Winona Ryder. <br />
