"Lux Radio Theater" broadcast a 60 minute radio adaptation of the movie onJune 2, 1941 with George Raft reprising his film role.
The wife of producer Mark Hellinger, Gladys Glad, a former showgirl for Broadway producer Florenz Ziegfeld Jr., was responsible for getting this film made. Hellinger had brought home a large stack of scripts that he was to read for filming consideration. Hellinger had leafed through the script and read the summary, but felt that "nobody would pay money to see a bunch of truck drivers". His wife read this script, liked it, and pressured Hellinger to read it. Reluctantly, he did, the film eventually got made and became the sleeper hit of the year for Warners. It was made for an estimated $400,000 and grossed more than $4,000,000. (Source: Book "The Mark Hellinger Story" by Jim Bishop, New York: Appleton-Century-Crofts, 1952)