Anna is een verlegen meisje dat vanwege haar gezondheid naar haar oom en tante in een dorp aan de kust wordt gestuurd. Ze stelt zich niet open op tegenover anderen en blijft introvert. Anna ontmoet vervolgens een vreemd meisje genaamd Marnie. Ze worden vrienden, maar geen van de dorpsbewoners weet iets van Marnies bestaan af.
Ja! de film When Marnie was There is nu beschikbaar om te kijken op Netflix in Nederland.
| Production | Tamaki Kojo | Line Producer |
| Writing | 安藤雅司 | Screenplay |
| Writing | 米林宏昌 | Screenplay |
| Writing | Joan G. Robinson | Novel |
| Writing | 丹羽圭子 | Screenplay |
| Directing | 米林宏昌 | Director |
| Art | 佐藤詩穂 | Background Designer |
| Visual Effects | 安藤雅司 | Animation Director |
| Production | 星野康二 | Producer |
| Art | 種田陽平 | Art Direction |
| Production | 西村義明 | Producer |
| Art | 種田陽平 | Production Design |
| Art | 松島英子 | Painter |
| Camera | 藤巻鐘子 | Additional Photography |
| Production | 鈴木敏夫 | Executive Producer |
| Sound | Priscilla Ahn | Theme Song Performance |
| Production | Ryoichi Fukuyama | Co-Producer |
| Art | 吉田昇 | Art Designer |
| Visual Effects | 濱洲英喜 | Key Animation |
| Visual Effects | 秦綾子 | Key Animation |
| Visual Effects | Kazuyoshi Onoda | Key Animation |
| Production | Shinsuke Nonaka | Production Manager |
| Visual Effects | Shinji Hashimoto | Key Animation |
| Visual Effects | 山下高明 | Key Animation |
| Production | Takuro Okada | Casting |
| Art | 高松洋平 | Art Designer |
| Production | Masami Hosokawa | Producer |
| Art | 石井弓 | Background Designer |
| Art | 春日井直美 | Background Designer |
| Visual Effects | Misa Koyasu | Key Animation |
| Production | 藤巻直哉 | Co-Producer |
| Editing | 松原理恵 | Editor |
| Production | Kyohei Ito | Production Manager |
| Visual Effects | 末冨慎治 | Key Animation |
| Visual Effects | 山森英司 | Key Animation |
| Art | 矢野きくよ | Background Designer |
| Visual Effects | 横田匡史 | Key Animation |
| Production | Ryûji Hayashi | Casting |
| Production | Tomoko Nakayama | Producer |
| Art | 西川洋一 | Art Designer |
| Visual Effects | 安藤雅司 | Character Designer |
| Visual Effects | 廣田俊輔 | Key Animation |
| Art | 新田有花 | Background Designer |
| Visual Effects | 沖浦啓之 | Key Animation |
| Visual Effects | Akiyo Okuda | Key Animation |
| Visual Effects | 大塚伸治 | Key Animation |
| Sound | 笠松 広司 | Sound Director |
| Visual Effects | 二木真希子 | Key Animation |
| Art | 林孝輔 | Background Designer |
| Art | 伊奈涼子 | Background Designer |
| Visual Effects | 大谷敦子 | Key Animation |
| Art | 神戸あや恵 | Background Designer |
| Art | 谷口淳一 | Background Designer |
| Visual Effects | Kenichi Yamada | Key Animation |
| Production | 種田陽平 | Production Designer |
| Visual Effects | Takayuki Hamada | Key Animation |
| Visual Effects | 本田雄 | Key Animation |
| Visual Effects | 稲村武志 | Animation Director |
| Art | 串田達也 | Background Designer |
| Visual Effects | Kitarou Kousaka | Key Animation |
| Art | 鮫島潔 | Background Designer |
| Art | 平原さやか | Background Designer |
| Visual Effects | 小西賢一 | Key Animation |
| Visual Effects | 田中敦子 | Key Animation |
| Art | 吉岡誠子 | Background Designer |
| Sound | 木村絵理子 | Sound Director |
| Visual Effects | 本間晃 | Key Animation |
| Visual Effects | 河原奈緒子 | Key Animation |
| Art | 武重洋二 | Background Designer |
| Visual Effects | Atsushi Tamura | Key Animation |
| Art | 大森崇 | Art Designer |
| Art | Ayumu Egawa | Background Designer |
| Art | 男鹿和雄 | Background Designer |
| Visual Effects | 鈴木美千代 | Key Animation |
| Art | 渡邊洋一 | Background Designer |
| Visual Effects | Tsutomu Awata | Key Animation |
| Visual Effects | 賀川愛 | Key Animation |
| Production | 奥田誠治 | Co-Producer |
| Visual Effects | 井上鋭 | Key Animation |
| Visual Effects | 近藤勝也 | Key Animation |
| Visual Effects | 土屋亮介 | Key Animation |
| Visual Effects | 山川浩臣 | Key Animation |
| Art | 久保友孝 | Background Designer |
| Art | 中村聡子 | Background Designer |
| Visual Effects | 和田直也 | Key Animation |
| Visual Effects | Shougo Furuya | Key Animation |
| Visual Effects | Katsutoshi Nakamura | Key Animation |
| Visual Effects | 宇佐美萌 | Key Animation |
| Sound | 村松崇継 | Music |
| Visual Effects | Akihiko Yamashita | Animation Director |
| Camera | 奥井敦 | Director of Photography |
