- Acting for Two:
- Along with reprising his roles as Cloud Guy and Smidge from the first film, Walt Dohrn now voices King Peppy.
- In the Korean dub, Wendy of Red Velvet voices Poppy, while also reprising her role as K-Pop leader Wani from the English dub.
- Ascended Meme: The McElroy Brothers once made a one-off podcast stating they'd like to star in a hypothetical Trolls movie sequel. It actually worked, and they ended up playing some minor characters in World Tour, even getting a few posters dedicated just to those characters.
- Delayed Release Tie-In: Various promotions (primarily food-based ones, like limited-edition Oreos) referred to the movie as being released "only in theaters". While this is a standard description for upcoming and newly-released films, it ended up being outdated when the film was moved to a video-on-demand premiere instead. (Notably, the McDonald's tie-in averted this by updating the accompanying website to reflect this change.)
- Development Gag: King Thrash is given the onset of senility that was originally conceived as part of Peppy's character, necessitating his retirement and Poppy's ascension to the throne.
- Direct to Video: The film wound up getting released on video on demand due to the COVID-19 pandemic shutting down theaters worldwide.
- Directed by Cast Member: Walt Dohrn, voice of Smidge, Cloud Guy, Mr. Dinkles and others in both films (as well as King Peppy in World Tour) takes over as director (he was a co-director on the first film) after Mike Mitchell moved on to The LEGO Movie 2: The Second Part.
- Dub Name Change: In the Russian dub, Hickory and Dickory become Eniki and Beniki, based on the Russian nursery rhyme "Eniki Beniki eli vareniki" (similar in practice to "Eeny Meeny Miney Moe").
- Dueling Works: Released four months after Frozen II, another sequel to a Cash Cow Franchise property aimed at girls. The films also coincidentally feature a similar plot twist with the protagonists learning that their ancestors oppressed another culture they deemed inferior. Due to the circumstances listed under Release Date Change, plus the fact that Frozen remains a phenomenally bigger franchise, Frozen II grossed higher than Trolls World Tour.
- The Other Darrin:
- Director Walt Dohrn replaced Jeffrey Tambor as King Peppy.
- The Japanese dub is an odd case, since the voice actors of the two leads, Poppy and Branch, were replaced from Risa Shimizu and KENN respectively from the dubs of the first movie and TV series, to movie actors Mone Kamishiraishi (better known for Anime fans for voicing Mitsuha Miyamizu in Your Name) and Eiji Wentz (who played Kitaro in the live-action film based in the same manga), respectively.
- Relationship Voice Actor:
- Poppy's new friend Legsly is voiced by Ester Dean, who previously worked with Poppy's voice actress Anna Kendrick in the Pitch Perfect films.
- Anna Kendrick and Sam Rockwell previously starred together in the 2015 film Mr. Right, much to the delight of Hickory x Poppy shippers everywhere.
- Release Date Change: The film was moved from April 17 to April 10, 2020. However, when the COVID-19 pandemic started shutting down theaters, Universal decided to release the film on video on demand at the same time as it was in theaters as many couldn't attend a theatrical showing, before removing a theatrical release altogether after all theaters (bar a few drive-ins) shut down. Happily for the film, it actually became a massive successnote , rather than being perceived as a de facto direct-to-video release.
- She Also Did: This isn't the first time Kelly Clarkson has played a guitar-strumming cowgirl.
- Short Run in Peru: The film did reach cinemas in a few Asian markets, but its run was cut short before it could open elsewhere due to the COVID-19 pandemic. After the decision to release it via digital rental, it was available in the UK on April 6, four days before the US.
- So My Kids Can Watch: One of the main reasons the McElroy Brothers wanted roles in the movie.
- Spoiled by the Format: A few trailers and promos basically hinted at Barb's HeelFace Turn, especially when some commercials showed her on good terms with Poppy and the others.
- You Sound Familiar: Rachel Bloom voiced Cybil in Trolls: The Beat Goes On! before she would go on to voice Queen Barb here.
Trivia / Trolls: World Tour