Trivia: Eternal Sunshine of the Spotless Mind
- Advertised Extra: Kirsten Dunst is in way less of the film than the marketing campaign made it out to be.
- Deleted Scene: In the extended version of Mary's tape, we learn that Mierzwiak pressured Mary into having an abortion as well as a memory wipe.
- Fake American: Kate Winslet and Tom Wilkinson are both British actors playing New Yorkers.
- Hey, It's That Guy!:
- Playing Against Type:
- Throw It In: A scene length one. While filming in downtown Manhattan, they heard that there was a circus parade going on outside. Gondry grabbed a portable camera, and got some footage of Carrey and Winslet messing around in the crowd completely anonymous due to it being night time and since the actors were wearing winter gear. The result is one of the happier memories in the movie.
- Word Of God: In an alternative script there's an extra ending, where an older Clem goes back to Lacuna to erase Joel again, and an older Mary reveals to her that Clem and Joel have been erasing and re-erasing each other for years, always ending up back together.