Foop is in this movie in CGI. This is the first time that characters other than Cosmo, Wanda and Poof appear in computer animation in one of the films. He also makes his first appearance in live-action, played by Scott Baio.
This is the first time an Anti-Fairy has been in CGI on TV.
The scene when Marty and Mitzie said to their parents that they love Vicky and they want she will babysit them all the time are very similar to what Timmy said to his parents in the first episode: The Fairly OddParents!.
Timmy as a fairy resembles his cartoon counterpart, but seen in CGI form, and without the buck teeth. When he turns into a fairy, Timmy is voiced by Tara Strong, his voice actress from the original series.
Timmy falls from a height and is thought to be dead, until he's revealed to be alive at the moment everyone turns their back (as in "A Fairly Odd Christmas"). Cosmo even says "again!" when this happens.
When Mr. Crocker talks about the fact that he knows what Anti-Fairies are, this might be a reference to the game, "Clash with the Anti-World."
The Anti-Fairy Council members look more like Anti-Fairies in this episode than in "Scary GodCouple." It is possible that the council that appears is in this episode is a different one than in "Scary GodCouple."
In a video interview promoting the movie's release, Daniella Monet stated that the film is "its own entity" and really "has nothing to do with the other [movies]."
From August 7 to September 2, 2014, this movie was available for free on Google Play
According to this movie, the true source of all magic in Fairy World is a large, glowing stone known as the, "Abracadabrium." This may be a retcon to the fact that The Big Wand, the main source of magic in Fairy World, is powered by Mr. Crocker's fanatic belief in fairies - and the beliefs of the other "nut jobs" of the world - as seen in "Crocker Shocker."
By the end of "A Fairly Odd Christmas," It would have seemed that Timmy and Mr. Crocker had resolved their differences and had become friends, but in this movie, he once again desires to destroy Timmy and his fairies.
At the end of the movie when Timmy becomes a fairy, he remarks that he always wondered what it felt like to be a fairy. However, he should already know, as he switched places with Cosmo and Wanda in "A Mile in My Shoes."
Marty and Mitzie should have theoretically lost Cosmo and Wanda as their fairies since they had revealed their existence right in front of Vicky. However, it's possible that Vicky simply ignored their statement which is what allowed them to keep them; This is actually similar to how she ignored Timmy's truth-powered declaration in the episode, "A Bad Case Of Diary-Uh!."
Timmy's transformation into a fairy at the end of the movie contradicts his human adulthood in the good future from Channel Chasers.
Although, considering that Daniella Monet stated the film as "its own entity" and really "has nothing to do with the other [movies]" and Butch Hartman stated that the live-action movies are set in an alternate timeline after the release of Season 10, it's likely that this ending is considered non-canon.