| english title | All of a Sudden |
| original title | 驚變 |
| year | 1996 |
| country | Hong-Kong |
| director | Herman YAU Lai-To - 邱禮濤 | |
| actor | Irene WAN Pik-Ha | |
| Alfred CHEUNG Kin-Ting - 张坚庭 | ||
| Peter NGOR Chi-Kwan | ||
| Simon YAM Tat-Wah - 任達華 | ||
| Dayo WONG Chi-Wah - 黃子華 | ||
| producer | NAM Yin | |
| action director | Joe CHU Kai-Sang | |
| scriptwriter | CHAU Ting | |
| CHENG Lai-Ching |
| genres | thriller category III |
| shooting studio | Mandarin Films |
| distributor | Mandarin Films |
| classification | Hong-Kong:  |
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