 Portugal |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2017-02-28 | Premiere | Fantasporto Film Festival |
 United KingdomOriginal Country |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2017-04-27 | Premiere | SCI-FI-LONDON | |
| 2017-11-02 | Premiere | British Horror Film Festival |
 United States |
|---|
| Date | Certification | Type | Notes |
|---|---|---|---|
| 2018-03-30 | NR | Theatrical (limited) | |
| 2018-03-30 | NR | Digital |
