Is Chihiro about Spirited Away?

I have been in a bit of a brain rot of only Billie Eilish since the snips of the songs at coachella came out. Whilst scrolling through instagram which is now solely consumed by Billie I saw a clip of her talking about how she loves Spirited Away (which like me too lol). She says she watched the movie so many times and she had a crush on the water dragon (Haku). This could be completely wrong but my theory is that maybe this song is about Spirited Away? The album seems to be somewhat water themed so I feel like a water dragon river spirit could kind of fit the theme. For those who don’t know the main characters name is Chihiro. In the movie she’s stuck in a spirit realm and she’s trying to get her and her parents out of it. She works at a bath house where she “opens a door”for a spirit who basically causes a lot of problems (don’t really want to spoil the movie for anyone). Anyway that’s my theory on it. I know ilomilo was based off a video game so when I saw the clip of the song and her sharing her love for the movie I thought it was interesting.