After the film was released, the telephone was commonly called the "Ameche", a slang term referring to actor Don Ameche who played the telephone's inventor. This association is explained in the film Ball of Fire (1941), showing the term was still in use two years after the release of the original film.

This is the only film featuring all four of the Young sisters: Loretta Young, Sally Blane, Polly Ann Young and Georgiana Young.

Bell's wife, Mabel Gardiner Hubbard, despite becoming deaf at age 5 became an exceptional speaker and lip reader as a result of the efforts of her parents.

Alexander Graham Bell's daughter, Mrs. Gilbert Grosvenor, had official script approval.

Don Ameche's brother, Jim Ameche, portrayed Alexander Graham Bell in The Story of Mankind (1957).

This film had its premiere at the 1939 World's Fair in New York.

Jack Kelly's film debut.

"Lux Radio Theater" broadcast a 60 minute radio adaptation of the movie on May 14, 1945 with Don Ameche reprising his film role.