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It was first announced at San Diego Comic-Con 2018 during the Steven Universe panel.
- Former Crewniverse member Ian Jones-Quartey returned to work on the movie's story.
- It is to be animated by Sunmin Image Pictures Co.
- At the end of the first airing of Change Your Mind the teaser trailer played revealing part of the planned release date.
- The brief glimpses of the Gems in the trailer shows them in their pre-regeneration outfits. This was most obvious with Garnet's shades being their original shape instead of the top of a star. This was likely done to avoid spoiling the Diamond Days arc's mass regeneration, though their appearances were not updated for the trailer shown after Change Your Mind.