Apart from the title and subject matter this otherwise has no connection with the 1960 Broadway musical, filmed 1964.
Cloris Leachman would play Margaret Brown again in TV movie "SOS Titanic" in 1979.
The only time that Celia Lovsky and Barry Atwater were co-stars, the two later playing characters among the most revered in Vulcan history in separate episodes of Star Trek (1966), those being the high government official T'Pau and the philosopher Surak, respectively.