"Come To The Stable" What is your favorite movie featuring Nuns?

What is your favorite movie featuring Nuns? This list was inspired when I was thinking about Christmas movies and I came across a film entitled Le due suore (1949). When I had went to investigate it further, Google showed a list of other films about Nuns. I have seen many of these films and own copies of. Also on google and YouTube, there a few entries of clips from this film featuring a the film's featured song "Through A Long And Sleepless Night" that the melody is from a 16th century Gregorian chant. So what is your favorite film featuring Nuns? Talk about the list here.