Screenwriter Shari Goodhartz wrote Geoff as a 13-year-old before he was aged up to 17.
Shari Goodhartz reportedly wrote the first draft of "My Heart Goes With You" in under a week.
Universal initially planned to make multiple Dragonheart sequels after this film.
This is the only film in the Dragonheart franchise in which a dragon has an American voice actor. The other dragons have voices provided by actors of European descent.
Goodhartz wrote the lyrics for the end credits song, "My Heart Goes With You," sung by Rona Figueroa, who plays Lian.