A year has passed since Menma's ghostly return to the Super Peace Busters. Although the time they spent together during that summer was short, the five members reminisce about what happened as they each write a letter to their lost friend.
Unfortunately the movie anohana: The Flower We Saw That Day - The Movie is not yet available on HBO Max.
| Visual Effects | Hatsue Koizumi | Key Animation |
| Sound | Shizuo Kurahashi | Foley Artist |
| Sound | Ayumu Anzai | Sound Mixer |
| Visual Effects | Tadashi Sakazaki | Key Animation |
| Production | Yoshigi Hata | Production Assistant |
| Visual Effects | Hitomi Ochiai | Key Animation |
| Visual Effects | Nishichi Yamaguchi | Key Animation |
| Visual Effects | Tomomi Kawatsuma | Key Animation |
| Visual Effects | Mariko Iguchi | Key Animation |
| Production | Hiroyuki Kanie | Production Assistant |
| Visual Effects | Kanako Ueda | Key Animation |
| Visual Effects | Manami Fukuyo | Key Animation |
| Visual Effects | Toshiharu Sugie | Key Animation |
| Visual Effects | Kouichi Sugitani | Key Animation |
| Visual Effects | Chihiro Hayashi | Key Animation |
| Visual Effects | Aika Kawasaki | Key Animation |
| Visual Effects | Eri Yamazaki | Key Animation |
| Visual Effects | Mio Araki | Key Animation |
| Visual Effects | Yuka Hasegawa | Key Animation |
| Visual Effects | Ikue Yoshima | Key Animation |
| Visual Effects | Takashi Hyodo | Key Animation |
| Visual Effects | Mieko Ogata | Key Animation |
| Visual Effects | Mika Saito | Key Animation |
| Visual Effects | Harumi Takagi | Key Animation |
| Visual Effects | Mitsuko Baba | Key Animation |
| Visual Effects | Keigo Sasaki | Key Animation |
| Visual Effects | Koji Odate | Key Animation |
| Visual Effects | Shingo Ogiso | Key Animation |
| Visual Effects | Kazuyuki Ueda | Key Animation |
| Visual Effects | Kota Michishita | Animation |
| Visual Effects | Natsumi Ishizaki | Animation |
| Visual Effects | Minori Homura | Animation |
| Visual Effects | Keisuke Furuichi | Animation |
| Visual Effects | Takashi Torii | Animation |
| Art | Tsutomu Ishigaki | Art Direction |
| Visual Effects | Masayoshi Tanaka | Key Animation |
| Visual Effects | Cédric Hérole | Key Animation |
| Visual Effects | Jun Yamazaki | Key Animation |
| Directing | Shinobu Yoshioka | Second Unit Director |
| Directing | Tatsuyuki Nagai | Director |
| Writing | Mari Okada | Screenplay |
| Production | Noriko Ozaki | Producer |
| Production | Shunsuke Saitou | Producer |
| Editing | Shigeru Nishiyama | Editor |
| Sound | Reimy | Original Music Composer |
| Visual Effects | Natsuko Kondou | Key Animation |
| Visual Effects | Hiromi Hata | Key Animation |
| Art | Tatsuyuki Nagai | Storyboard Artist |
| Writing | Tatsuyuki Nagai | Original Story |
| Writing | Mari Okada | Original Story |
| Writing | Masayoshi Tanaka | Original Story |
| Visual Effects | Masayoshi Tanaka | Character Designer |
| Visual Effects | Masayoshi Tanaka | Animation Director |
| Visual Effects | Hiroyuki Moriyama | CGI Director |
| Sound | Jin Aketagawa | Sound Director |
| Camera | Hiroyuki Moriyama | Director of Photography |
| Production | Kouichirou Natsume | Executive Producer |
| Production | Masuo Ueda | Executive Producer |
| Production | Yoshimasa Genohzono | Executive Producer |
| Production | Yutaka Ishikawa | Executive Producer |
| Visual Effects | Kazuko Nakashima | Color Designer |
| Production | Tomonori Ochikoshi | Production Coordinator |
| Art | Yukie Hiyamizu | Prop Designer |
| Sound | Katsuhiro Nakano | Sound Effects |
| Production | Mikihiro Iwata | Producer |
| Production | Hiroyuki Shimizu | Executive Producer |
| Production | Koji Yamamoto | Executive Producer |
| Art | Takayoshi Fukushima | Art Direction |
| Visual Effects | Hiroyuki Moriyama | Visual Effects Supervisor |
