Common philosophical themes in Japanese anime films include:

1. **Identity and Self-Discovery**: Exploring the nature of self, as in *Spirited Away* [1].
2. **Existentialism**: Questioning existence and purpose, seen in *Neon Genesis Evangelion*.
3. **Human-Nature Relationship**: Harmony or conflict with nature, as in *Princess Mononoke*.
4. **Mortality and Transience**: Themes of impermanence, like in *Grave of the Fireflies*.
5. **Morality and Ethics**: Choices between good and evil, explored in *Akira*.
6. **Technology vs. Humanity**: The impact of tech on human essence, as in *Ghost in the Shell*.

These themes often blend Shinto, Buddhist, and existential ideas, creating rich narratives.

[1]

Common philosophical themes in Japanese anime films include:

1. **Identity and Self-Discovery**: Exploring the nature of self, as in *Spirited Away* [1].
2. **Existentialism**: Questioning existence and purpose, seen in *Neon Genesis Evangelion*.
3. **Human-Nature Relationship**: Harmony or conflict with nature, as in *Princess Mononoke*.
4. **Mortality and Transience**: Themes of impermanence, like in *Grave of the Fireflies*.
5. **Morality and Ethics**: Choices between good and evil, explored in *Akira*.
6. **Technology vs. Humanity**: The impact of tech on human essence, as in *Ghost in the Shell*.

These themes often blend Shinto, Buddhist, and existential ideas, creating rich narratives.

[1] https://www.studioghibli.com.au/films/spirited-away/