The film opened on 348 screens on April 16 and earned the highest opening weekend gross in the franchise's history. The previous film, Detective Conan: Sunflowers of Inferno, eventually grossed a total of over 4.4 billion yen (about US$40.33 million), the highest so far in the franchise's history, but Detective Conan: The Darkest Nightmare is projected to eventually earn over 5 billion yen (about US$45.83 million).
Eiga Crayon Shin-chan Bakusui! Yumemi World Dai Totsugeki (Crayon Shin-chan the Movie Fast Asleep! The Large Attack on the Dreaming World), the 24th Crayon Shin-chan film, fell from #2 to #3 in its second weekend after Disney's Zootopia opened at #2.
The live-action film of Kengo Hanazawa's best-selling zombie manga I am a Hero opened on 284 screens this week at #4. The film sold 159,964 tickets over the weekend and earned 225,688,700 yen (about US$2 million).
Yu-Gi-Oh!: The Dark Side of Dimensions, the anime film that celebrates the 20th anniversary of Kazuki Takahashi's Yu-Gi-Oh! manga, opened on Saturday on 137 screens and ranked #6. The film sold 92,396 tickets over the weekend and earned 133,010,600 yen (about US$1.2 million).
Ansatsu Kyōshitsu: Sotsugyō-hen (Assassination Classroom: Graduation), the second live-action film based on Yusei Matsui's Assassination Classroom manga, dropped from #3 to #7 in its fifth weekend. The film has earned more than 3 billion yen (about US$27.53 million), surpassing the first film's box office takings of 2.77 billion yen (about US$25.6 million), as well as exceeding its projected gross of 2.9 billion yen (about US$26.9 million).
Zutto Mae Kara Suki Deshita: Kokuhaku Jikkō Iinkai (I've Always Liked You: Confession Executive Committee), the anime film of HoneyWorks' Vocaloid song project "Kokuhaku Jikkō Iinkai ~Renai Series~," opened on Saturday on 81 screens and ranked #8. The film sold 50,528 tickets for 70,507,400 yen (about US$630,000).
Chihayafuru: Kami no Ku, the first of two planned live-action films of Yuki Suetsugu's Chihayafuru manga, fell from #6 to #9 in its 6th weekend.
Eiga Doraemon Shin Nobita no Nihon Tanjō (Doraemon the Movie: Nobita and the Birth of Japan 2016), the 36th anime film in the Doraemon franchise, fell from #4 to #10 rank in its eighth weekend.
The Gekijō-ban Hibike! Euphonium: Kitauji Kōkō Suisōraku-Bu e Yōkoso (Sound! Euphonium the Movie: Welcome to the Kitauji High School Concert Band) anime film opened on Saturday on 38 screens and ranked #11 in the box office.