Kate Bosworth has heterochromia, a genetic anomaly causes two different iris colors, and it is visible in this movie. She normally wears contacts to correct the color.
The closing song in the film as Jane boards the train and leaving her husband Leonard is Jennifer Warnes singing "Famous Blue Raincoat" original written by Leonard Cohen. A line in the song goes: yes, and Jane came by with a lock of your hair she that you gave it to her.
The film was shown in black and white during its festival circuit, but it was ultimately released in color.