Think twice

Australia, 1958


This 1958 film demonstrates the hazards associated with the boilermaking trade. It outlines the dangers of heat, infrared and ultraviolet rays and fumes, which are encountered with oxyacetylene and electric arc welding. It shows how accidents happen with each of these dangers and the types of injury suffered, including burns, eye injury and blindness, and serious illness caused by inhalation of fumes. It also shows how accidental explosions can occur when using welding equipment, and the importance of safe practices when welding, particularly in confined spaces.

The film emphasises the protective gear and equipment recommended at the time that should be used in order to avoid these hazards. It also shows teenage apprentices, some very young, being trained in safety practices. The film takes place at Cockatoo Docks and Engineering Company, a shipbuilding company that operated on Cockatoo Island, Sydney, between 1933 and 1992.

Produced by the Waterside Workers’ Federation of Australia Film Unit and presented by the Boilermakers’ Society of Australia and Protector Safety Products Pty. Ltd. Sydney, Australia.

Please note: As this is an archival work, the content does not reflect current practice or standards. Professional advice for up-to-date safety practices should be sought from the appropriate contemporary authority.

Where to watch/play

Available to watch on ACMI premises over WiFi for purposes of research and study


production company

Waterside Workers' Federation of Australia. Film Unit.


James Levy

Keith Gow

Norma Disher



Production places
Production dates

Collection metadata

ACMI Identifier




Subject categories

Agriculture, Business, Commerce & Industry → Docks

Agriculture, Business, Commerce & Industry → Industrial accidents

Agriculture, Business, Commerce & Industry → Safety education, Industrial

Agriculture, Business, Commerce & Industry → Welding

Anthropology, Ethnology, Exploration & Travel → Cockatoo Island Dockyard (N.S.W.)

Anthropology, Ethnology, Exploration & Travel → New South Wales - Social life and customs

Communications, Infrastructure, & Transport → Docks

Educational & Instructional

Educational & Instructional → Educational films

Educational & Instructional → Instructional

Food, Health, Lifestyle, Medicine, Psychology & Safety → Accidents - Prevention

Food, Health, Lifestyle, Medicine, Psychology & Safety → Industrial accidents

History → New South Wales - History

Places → Cockatoo Island Dockyard (N.S.W.)

Places → New South Wales

Short films

Short films → Short films - Australia




Black and White


16mm film; Access Print (Section 1)

16mm film; Limited Access Print (Section 2)

MOV file ProRes4444; Digital Preservation Master - overscan

MOV file ProRes4444; Digital Preservation Master - presentation

MPEG-4 Digital File; ACMI Digital Access Copy - presentation

MPEG-4 Digital File; ACMI Digital Access Copy - overscan

Please note: this archive is an ongoing body of work. Sometimes the credit information (director, year etc) isn’t available so these fields may be left blank; we are progressively filling these in with further research.

Cite this work on Wikipedia

If you would like to cite this item, please use the following template: {{cite web |url= |title=Think twice |author=Australian Centre for the Moving Image |access-date=24 May 2022 |publisher=Australian Centre for the Moving Image}}