Marlee Matlin and Bilge Ebiri in conversation at the Vulture Spot at Sundance. Photo: Tommaso Boddi/Getty images It’s wild to think about, but Marlee Matlin still holds the distinction of being the youngest winner of the Best Actress Oscar. As Shoshannah Stern’s moving new documentary, Marlee Matlin: Not Alone Anymore, reminds us, the actress was 21 when she won for 1986’s Children of a Lesser God and only 19 when she was cast in Randa Haines’s film adaptation of Mark Medoff’s searing romantic