It is all too easy to find positive or negative aspects of the religious message of this film, released nine years after "The Song of Bernadette." In the ravaged middle of the twentieth century, torn up by wars and desolation, movies of faith helped to revive the spirits of many people, and that alone gave films like this great value. But the fact is, it is also great movie making, with a great story. While in my mind it does not match the sheer artistry of "Bernadette," It is well constructed and captures again the two sides of the question, whether to believe or not believe. There is a lot of documentation to support the validity of the story, but again if one chooses not to accept it, all the evidence in the world would be meaningless.
None-the-less, the catholic church took it very seriously. Sister Lucia, it is rumored sent a sealed letter to Rome just shortly before her death with the third and final message of the "lady." with instructions that it not be opened until a specific date. whether or not this is true, I do not know, but I do know that this is one of those films that will last for generations.