An excellent film which reflects the initial greed and ignorance of this particular wealthy mine owner until he finds himself trapped in the mine himself but lucky for him he has the righteous town doctor trapped with him, who is encouraging the mine owner to have faith in the other miners above ground who will stop at nothing to rescue them, It is a FEEL GOOD movie in such that it does have a relatively happy ending which is not always the case with mine disasters.
Fast forward from 1937 when this Nova Scotia mine collapsed to the year 1992 in the town of Plymouth, Nova Scotia, Canada, and there was a real mine explosion. The Westray mine opened in September 1991, but it was forced to close eight (8) months later when it was the site of an underground methane explosion on May 9, 1992, unfortunately and sadly killing all 26 miners working underground at the time. The week-long attempts to rescue the miners were widely followed by national media until it was obvious there would be no survivors. Lawsuits and a public inquiry by the government were initiated but no one went to jail for the possible sabotage, safety failures and/or accident of this mining disaster.
You would think based on this 1937 film Draegerman Courage, that mine owners would learn how dangerous mines are just by the sheer fact that mines are buried deep in the earth and men/women risk their lives working in them.
I give the film a solid 6 out of 10 IMDB rating.