With The Departed and World Trade Center, respectively, directors Martin Scorsese and Oliver Stone have recaptured some momentum after some bumpy years in the Hollywood system, and they plan to use their newfound leverage to embark on more commercially risky fare. (Separately, thank the Gods.) In Rome this week for The Departed's premiere in Italy, Scorsese confessed some fatigue with working on big productions that come with certain creative limitations. For his next feature, Scorsese plans to work outside the system to finally direct Silence, his long-planned adaptation of Shusaku Endo's great novel about Portuguese missionaries in early 17th century Japan, a period in which Christians were subject to horrific persecution.