Based on a famous Japanese novel. Apparently this has been his dream project for a while.
Here's some context:
Silence is an upcoming historic-drama based upon the novel of the same name. It is to be directed by Martin Scorsese, with an anticipated release date in 2016. Two Jesuit priests face violent persecution when they travel to Japan to seek out their mentor and spread the teachings of Christianity.
Liam Neeson as Father Ferreira
Andrew Garfield as Father Sebastião Rodrigues
Adam Driver as Father Francisco Garrpe
Tadanobu Asano as an interpreter for the priests
Ciaran Hinds as Father Valignano