There is a very good F/B page called Australia in 70MM - compiled by Doug Loudon. Very detailed info about all releases in 70 and info about the theatres where they were shown. Well worth looking into! Hope you find it as enjoyable as I still do. Cheers!
It did have two 70mm releases in Australia. It originally premiered in 35mm Cinestage on the 2nd October 1957 at the Paris Theatre in Sydney. The full version of the film in Todd-AO was reissued in 1963 at the Paris in Sydney, an 8 week run. Then 4 weeks at Brisbane's St. James and 3 weeks at...