THE future of the open-air cinema at Lake Eppalock is uncertain.
The open-air cinema has been screening movies for the last 40 years but with the onset of new technology manager Daryl Evans said this could be the last season.
Mr Evans said it was becoming more and more difficult to purchase 35 millimetre film - the type required for the open-air cinema.
"Digital is taking over," he said.
"The main format (of film) that was used over the last 100 years is becoming (rare) to find.
"Ninety-five per cent of cinemas have changed over (to new equipment) but there are still a few places that haven't, including us."
Lake Eppalock Holiday Park own the cinema.
Mr Evans said it would be sad if the cinema closed and said it was one-of-a-kind.
"Lake Eppalock Holiday Park is the only holiday park in Victoria showing the latest movies," he said.
"People enjoy sitting under the stars and watching a movie."
Lake Eppalock Holiday Park manager Leisa Rose said a decision on whether to continue opening the cinema would not be made until the middle of next year.
"We hope it continues to go," she said.
"But the new equipment is a big cost so we need to weigh that up.
"We won't decide to mid-next year but hopefully it continues - it is an icon."
The cinema will screen Gravity tonight from 9pm at the holiday park.
Other films scheduled to be screened include Turbo, The Hobbit, Frozen, The Secret Life of Walter Mitty, The Hunger Games, Cloudy with a Chance of Meatballs 2, Enders Game, Captain Phillips, About Time, Thor and Delivery Man.
Cinema staff encourage movie-goers to bring their own chair.
Food and drink are available.
The open-air cinema will also screen movies over the Labour Day weekend in March.
For more information visit Lake Eppalock open-air cinema Facebook page.