Into the Multiverse is a 2021 American/British animated comedy adventure crossover film produced by 20th Century Studios, Warner Bros. Animation and DC Entertainment. The story centers on Allias as he attempts to overcome his greatest fear to save the multiverse. It is a spin-off and a stand-alone sequel to Charlton Park : The Movie. The film features Allias Salmon reprising his role as himself from Charlton Park : The Movie alongside Djimon Hounsou, James Sie, Grey Griffin, Nicole Sullivan, Tara Strong, Chiwetel Ejiofor, Kelly Sheridan, Seth MacFarlane and Kimberley Brooks.
The film was released in select theaters on 28 July, 2021. It received positive reviews from critics, who praised the cast, visual effects, animation, score, more family-friendly tone and storyline. It was a box office success, despite the film being a little similar to The Lego Batman Movie and Spider-Man : Into the Spider-Verse.
- Allias Salmon as himself
- Seth MacFarlane as Peter Griffin and Brian Griffin
- Ray Romano as Manny
- Dan Castellaneta as Homer Simpson
- Grey Griffin as Diana Prince/Wonder Woman and Allias' mother
- Tara Strong as Batgirl/Barbara Gordon and Twilight Sparkle
- Kari Wahlgren as Zee Zatara/Zatanna
- Nicole Sullivan as Kara Danvers/Supergirl
- Kimberley Brooks as Karen Beecher/Bumblebee
- Myrna Velasco as Jessica Cruz/Green Lantern
- Chiwetel Ejiofor as Scar
- James Sie as Shendu, an evil demon dragon and the main antagonist.
- Djimon Hounsou as Barrington Salmon, Allias' father
- Kelly Sheridan as Starlight Glimmer, a unicorn and the secondary antagonist
- Brian Dobson as Zarg
- Fred Tatasciore as Lord Ralphie, a fire god, the leader of the Mizfitz and the minor, yet pivotal antagonist
- Tatasciore also does Shendu's henchman and additional voices
- This film reveals more of Allias' life and story before and after the events of its predecessor Charlton Park : The Movie.
- Despite the film being family-friendly, it has a more serious and darker tone as it shows the death of Allias' mother.
- It is shown that Allias loves dissing Spider-Man and the Rainbooms.
- The film shows that Allias has matured after the events of its' predecessor, but he does have a childish and funny side.
- In this film, it shows that Allias and Starlight have a fierce rivalry and hatred of each-other.
- When Allias mentions to Ralphie that he doesn't do or need friends, he is clearly referring to his former friends Charlton Park Academians from Charlton Park : The Movie.
John Powell who composed the film's predecessor Charlton Park : The Movie returned to compose the score of Into the Multiverse.