The first of two Nickelodeon movies to be released in 2019. The other one is Dora the Explorer (2019). In addition, it's the first of two Paramount Animation Films to be released in 2019, the other one is Sonic the Hedgehog (2019).
Originally titled "Amusement Park", and directed by [link=nm0113477. Brown was removed from the project following accusation of Sexual Misconduct in January 2018, and was replaced by David Feiss, Clare Kilner and Robert Iscove as co-directors who renamed the film "Wonder Park".
The amusement park in this movie is called "Wonderland". There is an amusement park in Ontario, Canada that is commonly known as Wonderland, although its full name is "Canada's Wonderland". It was previously owned by Paramount, one of the production companies for this film.
Both Matthew Broderick (June's Dad) and John Oliver (Steve the Porcupine) have been in an iteration of The Lion King. Broderick was in the Original 1994 Tradditionally Animated Film as Simba, whilst Oliver was in the 2019 Live Action Reboot as Zazu.
Nickelodeon Movies' first film based off a Nicktoons show to be mainly be entirely celebrity focused with it's cast, with the only Experienced Voice Actor in the cast being Kath Soucie. Unlike the previous theatrical pilots to Nicktoons shows where the cast mostly consisted of experienced voice actors (Jimmy Neutron: Boy Genius (2001) only had 2 celebrity voice talents, and Barnyard (2006) only had a quarter of the cast as celebrity voice talents).
Nickelodeon Movies' first fully CGI film that's a theatrical pilot to a show coming to Nickelodeon not to use the Computer Animation format style used in Jimmy Neutron: Boy Genius (2001) and Barnyard (2006), since the Animation had been done by Ilion Animation Studios instead of O Entertainment.
John Oliver's first fully animated film, after previous theatrical films of his where he'd been part of the voice over cast were live action films (The Smurfs (2011), it's sequel The Smurfs 2 (2013), and later The Lion King (2019)).
Gus the Beaver is the 5th character to be voiced by Kenan Thompson in a theatrically released film, after the Ringmaster in Space Chimps (2008), Greedy Smurf in the live action Smurfs films, Riff the Dog in Rock Dog (2016), and Mr. Bricklebaum in The Grinch (2018).