 If you liked
Hoshi wo Ou Kodomo
|
 ...then you might like
Kotonoha no Niwa
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Makoto Shinkai plays the role of the director for both Hoshi no Koe and Kotonoha no Niwa. Thus, expect similar themes and values for both movies.
Among other factors though, both movies has themes of romance. The main female character also meets a main male protagonist from both movies and they form a strange relationship.
The artwork from both movies are glorious and elegant given Shinkai's involvement.