The first soldier to sing in the Agincourt battle's aftermath is none other than Patrick Doyle, who composed the score for the movie.
The film was shot entirely in sequence.
Contains a flashback scene to ACT 1, Scene 2: of Shakespeare's "Henry IV, part 1", where Jack Falstaff proclaims "Do not thou, when thou art King, hang a thief." This flashback line is instead given to Bardolph, to make it more poignant when Henry hangs him.