The Hindenburg is mentioned as (successfully) completing a transatlantic trip, with the husband on board. This movie was released (USA) March 5, 1937. The Hindenburg disaster occurred on May 6, 1937. It never made that return flight to Europe.
Actress Dana Delany has stated on Twitter that she makes a point of watching this film every Valentine's Day.
"The Screen Guild Theater" broadcast a 30 minute radio adaptation of the movie on November 10, 1940 with Charles Boyer reprising his film role.
This is one of two dozen Walter Wanger/Harry Sherman/Cinema Guild films originally released theatrically by United Artists, re-released theatrically in 1948 by Masterpiece Productions, and ultimately sold by them for USA television syndication in 1950. It was first telecast in New York City Saturday 6 May 1950 on WCBS (Channel 2), in Philadelphia Sunday 14 May 1950 on WFIL (Channel 6), in Cincinnati Thursday 18 May 1950 on WKRC (Channel 11), in Chicago Monday 12 June 1950 on WENR (Channel 7), in Albuquerque Tuesday 13 June 1950 on KOB (Channel 4), in Los Angeles Sunday 16 July 1950 on KTLA (Channel 5), in Phoenix Sunday 23 July 1950 on KPHO (Channel 5), in Detroit Sunday 20 August 1950 on WXYZ (Channel 7), in Boston Sunday 12 November 1950 on WNAC (Channel 7), in Pittsburgh Friday 29 December 1950 on WDTV (Channel 3), and in San Francisco Saturday 13 January 1951 on KGO (Channel 7).