Jane Wyman's Oscar acceptance speech is reportedly the shortest on record for Best Actress: "I won this award by keeping my mouth shut and I think I'll do it again."
Widely considered to be the first Hollywood film to openly tackle the subject of rape.
Jane Wyman became the first person, actor or actress since the silent era to win an Oscar without uttering a word, after sound was created, just before The Jazz Singer (1927) was filmed & released, 21 years earlier, in 1927.
Stephen McNally, who played the hideous "Locky McCormick" character role, in the theatrical film, also played the saintly doctor in the Broadway production, just to prove he could play a friendly or a diabolical (evil) character role.
Max Steiner received an Oscar nomination for his score, one of 10 that he provided for movies in 1948. Other notable films from that banner year that benefited from his input included two for John Huston, The Treasure of the Sierra Madre (1948) and Key Largo (1948).
The second film to be nominated for all the top 6 Academy Awards (as of then) - Best Film, Best Actor, Best Actress, Best Supporting Actor, Best Supporting Actress & Best Director. Other films to feature in this unique pantheon, in order, are/were: 01st, William Wyler's Mrs. Miniver (1942). 02nd, Johnny Belinda (1948). 03rd, Billy Wilder's Sunset Blvd. (1950). 04th, Elia Kazan's A Streetcar Named Desire (1951). 05th, Fred Zinnemann's From Here to Eternity (1953). 06th, Mike Nichols' Who's Afraid of Virginia Woolf? (1966). 07th, Arthur Penn's Bonnie and Clyde (1967). 08th, Stanley Kramer's Guess Who's Coming to Dinner (1967). 09th, Sidney Lumet's Network (1976). 10th, Hal Ashby's Coming Home (1978). 11th, Warren Beatty's Reds (1981). Plus, David O. Russell's duo, 12th, Silver Linings Playbook (2012) 14th, American Hustle (2013).
Although set in Nova Scotia, Canada. In reality, all of the filming occurred in California, United States of America, not Nova Scotia, a Province of Canada.
While the film won the best actress Oscar, it lost in all the other 11 categories in which it was nominated. This is still (as at 2018) a record for the most number of categories lost by a single film.
The original Broadway production of "Johnny Belinda" by Elmer Harris opened at the Belasco Theater & ran for 321 performances.
The story is based on an actual incident that took place on Prince Edward Island in Canada. Belinda MacDonald is based on one Lydia Dingwell (1852-1931).
The only Best Picture Oscar nominee that year to be also nominated for Best Cinematography (Black and white).
Although this film was a very big success, director Jean Negulesco later claimed that he had had a very bad time making it, and that studio head Jack Warner had re-edited the film against his wishes and even included some new footage by a different director. He left Warner Brothers immediately after finishing it.