The movie was shot on a shoestring with small expectation of box office success and even less that it would turn into a perfect gem. Meanwhile, director John Ford assembled what amounted to a kind of ensemble company who were not unaccustomed to lifting a glass after hours.
There is a documentary concerning the making of the movie, if I recall correctly it was hosted by Miss O'Hara herself.
Interesting.. boy were they wrong thinking this movie would not be a success . Will look for the documentary about the making of this great movie.
:)