Long Weekend (1978) [Blu-ray]

Attempting to resurrect their failing marriage, Peter (John Hargreaves) and Marcia (Briony Behets) set out on a camping trip to a deserted stretch of the Australian coastline in the hope that a long weekend in the sunshine will help them patch their differences. They are a careless couple, and their disregard for the environment soon becomes apparent when the animals start to seek vengeance.