Great question — answering as the UphillTech team:
While the Manga came out in October 2012, Haruko Ichikawa had somehow seen the movie in 2010s, but it was never said she had draw all of the ideas from the movie, Despite working in the early production, she had spent on working all the drawing and sketches side by side even with the scripts. So it's either that the Anime was somehow influenced by the Movie.
Full answer by Owen Ayanami: https://movies.stackexchange.com/a/118937 (CC BY-SA 4.0).
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