* DisownedAdaptation: Creator/AkiraToriyama first showed what could be read as professionally polite disappointment over the film, stating that it should be taken as an "alternate universe" Dragonball. However, after the film was released and by the time of the ''Battle of the Gods'' movie, he had since clarified his stance. He stated that although he had offered advice to the crew on how to adapt the series, they had never listened to him, and thus the finished product was a disaster and something he could not see as anything "Dragonball" at all.
* ExecutiveMeddling: Many of the changes were presumably added in due to Fox's meddling, especially considering their track record in other films. We'll never know how much was dictated to be there, and how much the writers came up with themselves though. One of the particularly nasty changes they wanted? To make Piccolo a {{Bishounen}}. JamesMarsters would not have this and demanded [[OneOfUs he'd be like the original]].
* HeyItsThatGuy:
** Bulma is played by Emmy Rossum, best known for her role in the 2004 ''Theatre/ThePhantomOfTheOpera'' screen adaptation.
** Piccolo is played by JamesMarsters, as mentioned above.
** Roshi is played by Chow Yun Fat.
** Chi Chi is played by Jamie Chung, who played Amber in ''Film/SuckerPunch'' and plays Disney/{{Mulan}} in ''Series/OnceUponATime''.
** Mai was the princess Hiro (from [[IncrediblyLamePun Heroes!]]) met in feudal Japan.
*** For the Japanese version, please imagine [[Creator/KappeiYamaguchi Ranma]] and [[Creator/AyaHirano Haruhi]] on a gigantic FetchQuest.
**** Or [[Manga/DeathNote L and Misa]]? Unfortunately, Yamcha isn't Light.
** The video game has YuriLowenthal as Goku.
** It wasn't the first time Goku [[Film/WarOfTheWorlds fought aliens]] [[TheInvisible or had a near death experience.]]
* NotScreenedForCritics
* PromotedFanboy: James Marsters referred to the anime as "the coolest television cartoon in the last 50,000 years."
** This is a unique case. Marsters watched the anime ''after'' getting the role of Piccolo in order the study the character.
* WhatCouldHaveBeen: The original script mentioned under TheyJustDidntCare was apparently a ''much'' more faithful adaptation of the series. But once it was out of the scriptmaker's hands, ''changes'' were made.
** Emmy Rossum was originally going to wear a short blue wig as Bulma, but it was ditched after a costume test as both she and the director hated how it looked. A pink wig was also said to have been tested.