* ActorAllusion: MeatLoaf's character saying "he would do anything for [the Girls] but he won't do that."
** Roger Moore's character saying "There's no need for any stirring" as he is shaking a [[Film/JamesBond martini]].
** Victoria snarking that Geri should remove her top to awaken a young boy from a coma could be seen as one to Geri Halliwell's stint as a topless model.
* HeyItsThatGuy: Apparently, the Spice Girls are being managed by [[Film/WithnailAndI Withnail]], being driven by [[RockyHorrorPictureShow Eddie]], stalked by [[RockyHorrorPictureShow Riff Raff]], and best friends with [[Series/{{Torchwood}} Toshiko]], whose baby is delivered by [[{{Casualty}} Duffy]].
** Not to mention Series/{{House}} is Poirot in a fantasy sequence.
*** And [[StephenFry Jeeves]] is the unforgiving judge in a dream sequence. ("Call Howtie and the Blowfish!")
** And Elvis Costello tends bar.
** [[Film/WhoFramedRogerRabbit Eddie Valiant]] appears in one fantasy scene as a disguise worn by one of the Spice Girls. [[{{Shrek}} The Fairy Godmother]], [[TheLeagueOfExtraordinaryGentlemen Dr. Jekyll]], and [[Film/AliceInWonderland the Cheshire Cat]] also show up.
** The girls are photographed at one point by [[TheWire Jimmy McNulty]].
** [[{{Film/X-Men}} Nightcrawler]] is an annoying filmmaker trying to make an in-depth documentary about the girls.
** One of the two American filmmakers wants to [[KidsInTheHall CRUSH YOUR HEAD!]] Who's the other one?
*** [[{{Cheers}} NORM!]]
** Note that, despite employing an AllStarCast of British character actors, the film, against all odds, has no shared cast members with the ''Film/HarryPotter'' series. Not unless you count stuntman Kiran Shah.
** Gibbs from Pirates of the Carribean is playing the officer that stops them outside of the concert hall.
* MoneyDearBoy: Creator/RichardEGrant has cheerfully admitted that money was his primary consideration for appearing in the film. It's hard not to suspect that it was a primary consideration for most of the other participants as well.
** SoMyKidsCanWatch was also a motivator for Grant, as his pre-teen daughter was a big fan of the Spice Girls at the time.