Director Steven Spielberg and other celebrities including Leonardo DiCaprio, Robert Downey Jr., and Mary Kate and Ashley Olsen were among the Hollywood stars who gathered to mourn media mogul Brad Grey in a private service on Thursday. Grey's death shocked the entertainment community. Grey was praised by those who knew him for his long reign as chairman of Paramount Pictures. Throughout his career Grey was the recipient of many awards including multiple Golden Globes, Emmy Awards, and four Peabody Awards.