Best option for disposal:
Photographic film negatives can be recycled by dropping them off at the Wurriki Nyal Civic Precinct at 137-149 Mercer Street, Geelong, during opening hours. They should be placed in the dedicated x-ray slot in the recycling station located in the foyer.
Otherwise, place in your red lid rubbish bin.
Otherwise:
X-rays and photographic film negatives are recycled here in Australia. They are a valuable source of silver and plastic.