Desc: Underground Railroad: The William Still Story: Directed by Laine Drewery. With Dion Johnstone, Chemika Bennett-Heath, Cherise Brown-Hammill, Winsome Cooper. The "Underground Railroad: The William Still Story" is the story of William Still, a former slave who escaped through the underground railroad. The film documents how he became one of the most active people in assisting with the escape of others.