- A Metro North Commuter Railroad train from the New Haven line (red striped) doubled for the Long Island Railroad (which are blue striped).

- Initially throughout the train scene, the music was supposed to fill up the gap during the silence between Joel and Clem until writer Charlie Kaufman suggested to do the opposite. Music was…More

- Despite the fact that Charlie Kaufman's script and Michel Gondry's visual concepts were closely followed, the actors were allowed many chances to improvise. Elijah Wood and Mark Ruffalo…More