Fr. John Fulton, a Jesuit instructor in a seminary school, feels he has lost his vocation. A talk with his friend Fr. Marc Arnoux is no help. But on the night he plans to leave the seminary (and the Order) his old teacher Fr. Jose Sierra miraculously gets up and walks, to tell him to stay. The young, wheelchair-using neighbor Terry Gilmartin regains hope a similar miracle might allow her to walk; her physician, Dr. Peter Morrell, the same one who attended Fr. Sierra, and who is in love with Terry, confesses that he had engineered Sierra's miraculous recovery, to Fr. Arnoux, but refuses his advice to tell the truth. The Jesuit seminary rector orders Fr. Arnoux to plead the validity of the miracle before the Vatican, in Rome. When his highly respected subordinate refuses, the rector dies of a heart attack. At that point Dr. Morrell admits his deception, in particular to Terry, who goes to the seminary chapel and, miraculously, gets out of her wheelchair, at the moment she prays for Dr. Morrell.
The film was financed by Charles Boyer,[6] for whom the original play's character of Father Aherne was renamed to Father Arnoux, to account for Boyer's French accent.[7] Filming took place at the Mission Inn, Riverside, California, during May and June 1950.[7] Director Douglas Sirk had the Spanish Art Gallery at the Inn converted into a seminary common room; bedrooms above the gallery were staged to represent the priests' cells.[7] The St. Francis chapel and atrium, the Mission's original cloister walk, and the monk's music room were also used for filming.[8] The cast and crew, totaling fifty, lived at the Mission Inn while filming.[8] Sound recording was done with magnetic tape, until then a rarity on location.[8]
^"Lavery Is Accorded Ovation As Play Opens in New York". Poughkeepsie Eagle-News. Poughkeepsie, New York. October 2, 1934. p. 1 – via Newspapers.com.
^"Moving Day: Miracle Play Travels From 46th to 47th St". Daily News. New York, New York. October 29, 1934. p. 39 – via Newspapers.com.
^"Drama News". Times Union. Brooklyn, New York. January 2, 1935. p. 16 – via Newspapers.com.
^Cameron, Kate (January 21, 1951). "Independents Are Active". Daily News. New York, New York. p. 94 – via Newspapers.com.
^ abcMooring, William H. (May 26, 1950). "Lavery's 'First Legion' Now Before Cameras". The Tidings. Los Angeles, California. p. 29 – via Newspapers.com.
^ abcScheuer, Philip K. (June 4, 1950). "Hollywood Discovers Famed Mission Inn". Los Angeles Times. Los Angeles, California. p. 101 – via Newspapers.com.