| The Twins Effect | |
|---|---|
| Directed by | Dante Lam |
| Produced by | Carl Chang |
| Starring | Charlene Choi Gillian Chung Ekin Cheng Jackie Chan |
| Editing by | Chan Ki Hop |
| Release date(s) | June 23, 2003 |
| Running time | 107 min. |
| Country |  Hong Kong |
| Language | Cantonese |
| Followed by | Twins Effect II |
| Official website • IMDb • Allmovie | |
The Twins Effect (traditional Chinese: 千機變), also known as The Vampire Effect in the United States, is a 2003 Hong Kong film directed by Dante Lam. The movie was derived from the famous Cantopop duo, Twins, starring both Gillian Chung and Charlene Choi, and co-starring actors Edison Chen and Ekin Cheng, with a special guest appearance by Jackie Chan.
Following its release on June 23, 2003, The Twins Effect was a box-office success in Hong Kong. The film gained huge popularity, mainly from fans of the musical group, Twins. The film was later released on DVD in the United States, where it was renamed The Vampire Effect.
Cast and roles include
- Ekin Cheng - Reeve
- Gillian Chung - Gypsy
- Charlene Choi - Helen
- Edison Chen - Kazaf
- Anthony Wong - Prada
- Mickey Hardt - Duke Dekotes
- Jackie Chan - Jackie
- Josie Ho - Lila
- Karen Mok - Ivy
- Maggie Lau - Nurse Maggie
- Cheung Tat Ming - Jackie's Friend
- Ricardo Mamood - Ethan
- Winnie Leung - Deborah
- Mandy Chiang - Miss Momoko
- Digger Mesch - Vampire Thomas
- Marky Lee Campbell - Vampire Boz
- Mark Strange - Vampire Smashing
- Philip Chen - Vampire Lebrow
- Daniel Whyte - Vampire Ice
- Simon Robida - Vampire Zoolander
- Daniel O'Neill - Vampire Dan
- Bey Logan - Vampire John
- Robert Meister - Vampire Elron
- Michael Clements - Vampire Nobals
- Don Ferguson - Vampire Train
- Philip Ng - Ambulance Vampire
- Matthew Sturgess - Vampire Food
- Chapman To - Helen's Fat Boyfriend
- Spencer Lam - Jackie's Dad
