Actor Darby Camp (the young Juliet) is the daughter of Lacy Camp (the adult Juliet).
All of the vintage cars in the film are from local car collectors near the region of Georgia where the film was made.
All of the photos in Itasca's room (played by Cloris Leachman) are actual photos of the director's mother, Bonnalyn Carr - who the director modeled the character after in her adaptation of the novel.
The costume designer, Beverly Safier, designed many of the outfits worn in the scenes from 1967 from fabric belonging to her mother and grandmother.
The main car in the movie is known as Pop's 1959 Cadillac and is the car that started the Miles Through Time Automotive Museum where many of the classic vehicles came from.