Die Groe Stille played at Venice and Toronto late last year under the title "Into Great Silence." It won an award at Sundance earlier this year before being part of New Directors/New Films series here in NYC. I don't believe that it has secured U.S. distribution at this point. Looks like the German DVD will be available in December.

From the 2005 TIFF's program notes:

"A film of tranquility, stillness and contemplation, Into Great Silence is marked by moments of visual splendor and almost tactile sound: the rumpled roar of the wood stove; scissors crisply crunching through heavy cloth; the soothing, murmured rhythms of the liturgy. At a time in which spiritual practice is a radically variegated pursuit, these privileged observations of one of its purest forms are a balm for our bustling days. 

Philip Groening was born in Dsseldorf and grew up partly in the United States. He studied medicine and psychology before enrolling at the Munich Academy for Television and Film. He has worked as an actor, a sound assistant, a property master and an assistant director. His films include the shorts The Swimmer (83) and Stachoviak! (88), the documentaries The Last Picture Taken (83) and Victims. Witnesses (93), and the feature films Summer (86), The Terrorists! (92) and L'Amour, l'argent, l'amour (00). Into Great Silence (05) is his latest film."