Canadian Bay coastline at Mount Eliza, just south of Mornington...
On the Beach (1959) - starring Gregory Peck, Ava Gardiner and Fred Astaire - was partly filmed at Canadian Bay.
The clubhouse was used as the film's operating headquarters.
(Wikipedia claims that beach scenes were filmed at Cowes on Phillip Island,
though the history of the clubhouse makes alternative claims.
Further, the Mornington Peninsula Leader newspaper, in November 29, 2014, revealed that the Mount Eliza mansion where Ava Gardiner and Gregory Peck stayed
- while filming on the beach at the bottom of the property - had been sold. )