This week on The Treatment, Elvis welcomes actor John David Washington who’s starring in the film adaptation of the August Wilson play The Piano Lesson, directed by his brother, Malcolm Washington. Then, director Marco Perego stops by to talk about Dovecote, his short film about a women’s prison in Italy, starring Zoe Saldaña. And on The Treat, filmmaker Matt Tyrnauer talks about a book on grammar that helped him become a director.