The Story of Alexander Graham Bell

Alexander Graham Bell (Don Ameche) works as a teacher to the deaf while experimenting with sound waves. After assisting in the development of the telegraph, Bell is hired to teach a deaf woman, Mabel (Loretta Young), how to speak. They fall in love and, with the support of Mabel and the assistance of Thomas Watson (Henry Fonda), Bell creates his greatest invention of all: the telephone. But the device's success is threatened when Western Union wages a legal battle over the patent.