Jodie Turner-Smith in Anne Boleyn. Mindy Kaling in Scooby Doo. Dev Patel in The Green Knight, and last year's David Copperfield.It seems like Hollywood gatekeepers are opening up more traditionally white parts to other performers. But as NPR film critic Bob Mondello explains, cross-cultural casting isn't new — and it's always raised eyebrows. In participating regions, you'll also hear a local news segment that will help you make sense of what's going on in your community.Email us at considerthis@npr.org.