Las conspiradoras

I saw it when I was 8 years old, I'm almost 40 now and I always remember this movie. Catholic nuns in France, hiding Jewish children in their convent during the occupation. Lilli Palmer, I remember her face vividly. There must be a reason, but I can't find a copy of that film, not even on video. Maybe, I should keep the memory as it is, rather than jeopardizing it by seeing again, today. I couldn't sleep after I saw it. I think I lived that film. It happened to me another time, when I was around the same age. A Spanish movie, MARCELINO PAN Y VINO. Strangely enough, both films have religious roots and take place within the walls of convents and monasteries. I wonder what that means.