Trivia: The Inn Of The Sixth Happiness tells the story of Gladys Aylward, an English missionary in China. The casting of Ingrid Bergman in the role was quite amazing, especially considering that Gladys Aylward was still alive at the time. Ingrid Bergman, who exuded glamour throughout the movie, was 5' 9" tall, had blonde hair and retained her native Swedish accent. Gladys Aylward was of rather plain appearance, stood a mere 4' 10" tall, had black hair and spoke with a cockney accent.
Factual error: The movie's title "The Inn Of The Sixth Happiness" is the name of the mission station that Gladys Aylward/Ingrid Bergman sets up. In reality this was called "The Inn Of The Eighth Happiness." Numerology is popular in China, where eight is regarded as a particularly auspicious number. Apparently the film company thought "sixth" had a better ring to it than "eighth." In the movie it is explained that there are six levels of happiness. This is not a Chinese belief and seems to have been invented for the movie.
Jen-Ai: I like China the way it is.
Capt. Lin Nan: Filthy? Ignorant? Backward?
Jen-Ai: No, but if your house is dirty you can clean it.