* CelebrityVoiceActor: Prominent in both the original Japanese (obviously), as well as the U.S. and the UK English dubs.
** In the U.S. English dub, there's Creator/DavidHenrie as [[DubNameChange Shawn]] (Sho), Music/BridgitMendler as Arrietty, [[CreatorCouple then-real-life couple]] Will Arnett and Creator/AmyPoehler as Arrietty's parents, and Carol Burnett as Haru (the housemaid).
** In the UK English dub, Creator/SaoirseRonan voices Arrietty, Creator/TomHolland voices Sho, and Creator/MarkStrong voices Pod.
* {{Defictionalization}}: A life sized version of Arietty's Hair clip/bow can be bought as an collectible and worn by fans of the Anime.
* DuelingDubs: The film got two English dubs. One was released in the UK and Australia in 2011 by Optimum Releasing, and another from Disney in 2012. Both dubs are on the Japanese Blu-ray. It's not really clear why two dubs were made, but it's believed that Optimum wanted to release the film in the UK before Disney's American dub was ready. It also helps that ''Arrietty'' is based on an English novel.
* NoExportForYou: Disney's Blu-ray only included their English dub. When GKIDS got the rights, it was speculated that they would be able to negotiate the rights to include the UK dub as well. Not the case.
* PlayingAgainstType: Comedic actor Will Arnett voicing the Creator/HarrisonFord-esque Pod.
* PromotedFanboy: French singer/songwriter Cécile Corbel became known to Ghibli filmmakers after she sent them a fan letter showing her love for their films along with a copy of ''Songbook, Vol 2", at the time, her most recent album. After Toshio Suzuki (the film's head producer) listened to the CD, she received an e-mail asking her if she could write a song for the movie. She ended up composing the entire score.
* ScrewedByTheLawyers: Related to NoExportForYou above, GKIDS implied on Twitter that there would've been hurdles to including the UK dub on their release no matter what, but that they still made an effort that proved futile.