- Esoteric Happy Ending: Yaaay, Timmy's alive! And he's also a fairy, meaning that he's ageless and immortal, unlike his very much mortal girlfriend! There's absolutely NO way this could backfire on him!
- Fanon Discontinuity: Among the many things fans prefer to ignore since the show was Un-Cancelled, this movie ranks high among them.
- Internet Backdraft: Turning Timmy into a fairy (with his animated, 10/11-year-old appearance and his original voice to boot) really did not set well with the fanbase, especially since after everything he and Tootie went through in the last two movies, they still wound up losing Cosmo, Wanda, and Poof.
- Nightmare Fuel: Bunny!Vicky. It shows up in the last few minutes and is easily one of the scariest things in the movie.
- Uncanny Valley: Vicky as a rabbit.
YMMV / A Fairly Odd Summer