Long Weekend (1978 film)

Long Weekend is an Australian horror film shot in 1977 and first shown in 1978. The film was directed by Colin Eggleston and stars John Hargreaves and Briony Behets.

The script was the first feature script written by Everett De Roche, an experienced Australian TV writer. He was inspired by a trip he took on an Easter weekend to an isolated beach in New South WalesI started LW as a way to avoid the TVcopshow doldrums while still convincing myself I was working. LW was a unique project because I began with no outline, no notes or research, very little idea as to where the story was going, and absolutely zero knowledge of screenplays. I simply started at page 1, scene 1, and made it up as I went. I had only a vague plan to write a kind of environmental horror story. My premise was that Mother Earth has her own autoimmune system, so when humans start behaving like cancer cells, She attacks. I also wanted to avoid a JAWSlike critter film. I wanted the LW beasties to all be benignlooking and not overtly aggressive. ........

Source: Wikipedia