 Australia |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2018-09-15 | PG | Premiere | Madman Anime Festival |
 Canada |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2018-07-29 | Premiere | Fantasia International Film Festival |
 China |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2019-05-17 | Theatrical |
 France |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2019-08-14 | U | Theatrical |
 Germany |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2019-10-29 | 6 | Theatrical | |
| 2020-03-05 | 6 | Physical |
 Ireland |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2019-04-09 | PG | Digital |
 Italy |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2018-11-20 | Theatrical |
 JapanOriginal Country |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2018-08-17 | Theatrical |
 Korea, Republic of |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2018-10-18 | All | Theatrical |
 Mexico |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2024-06-27 | Theatrical |
 Portugal |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2021-08-05 | M/6 | Digital | Netflix |
 Russia |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2018-09-06 | 6+ | Theatrical |
 Spain |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2021-08-05 | Digital | Netflix |
 Thailand |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2018-11-22 | Theatrical |
 Ukraine |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2018-09-06 | Theatrical |
 United States |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2018-12-31 | PG | Digital | |
| 2019-04-12 | Theatrical |