"Academy Award Theater" broadcast a 30 minute radio adaptation of the movie on July 10, 1946 with Henry Fonda reprising his film role.
John Ford and producer Darryl F. Zanuck fought an extended battle over control of the film. Ford even had unused takes of the film destroyed so the studio could not insert them into the movie. One scene that Ford insisted on cutting was a scene where Lincoln met his future assassin, a very young John Wilkes Booth.
Henry Fonda originally turned down the role of Lincoln, saying he didn't think he could play such a great man. He changed his mind after John Ford asked him to do a screen test in full makeup. After viewing himself as Lincoln in the test footage, Fonda liked what he saw, and accepted the part. He later told an interviewer, "I felt as if I were portraying Christ himself on film."
Henry Fonda wore specially made boots that made him appear taller.
Final film of Alice Brady.
The trial of William "Duff" Armstrong, on which the fictionalized defense of Matt and Adam Clay shown in this movie is based, actually took place in 1858, when Lincoln was a successful railroad attorney and soon to be a nominee for the Senate. The other person accused of murder had been convicted in a separate trial several months earlier.