Actress Demi Harman's characater Sarah was created after it was decided to re-shoot Pete's death scene.
Make up to create the creature took 15 hours as prosthetics and full body make up were applied, including hand painting a full body Samoan tattoo on actor John Maila.
Filming the scenes when Jodie runs in to the water to escape the attacking creature the temperature dropped to -3 degrees centigrade.
Sally's positive pregnancy test was provided by actress Kristy Hamby (Jodie) who was three months pregnant at the time of filming.
The cast and crew got a real taste of horror when confronted by a shotgun wielding neighbor on location.