The "Apache" Indians are actually lifeguards from the beach at Santa Monica, California, painted with full body paint and made up to look like Apaches. Director Hugo Fregonese and producer Val Lewton wanted the Apaches to do a lot of leaping from high windows, off of roofs, etc., and the film's budget precluded hiring stuntmen to play the Apaches. They decided to hire the lifeguards because of their athleticism and, more importantly, the fact that they didn't have to get stuntmen's pay.
Noreen Corcoran's debut.
The scene in which the town, in order to match the Indians' chanting and show that they are just as brave, sing "Men of Harlech" in Welsh was borrowed 13 years later by the film Zulu, directed by Cy Endfield, in which the soldiers match the Zulu native tribes' chanting by singing "Men of Harlech," only they sing it in English.
Final film of Dorothy Teters.