Kerstmis wordt raar - heel raar - nadat George en Harold terug in de tijd zijn gegaan om een paar van hun geliefde kersttradities te veranderen.
Ja! de film Captain Underpants: Mega Blissmas is nu beschikbaar om te kijken op Netflix in Nederland.
| Writing | Matt Smith | Writer |
| Writing | Dav Pilkey | Novel |
| Directing | Kevin Peaty | Director |
| Writing | Mark Banker | Writer |
| Production | Todd Grimes | Supervising Producer |
| Directing | Erik Kling | Director |
| Production | Cymbre Walk | Casting |
| Production | Peter Hastings | Executive Producer |
| Production | Ania O'Hare | Casting |
| Production | David Wiebe | Executive In Charge Of Production |
