Found 2 for 1 offer on Hoyts Lux cinemas. The condition was to be an AHM Member but it never asks you for a membership number.
I found this was only avaliable on the new Hoyts website: https://preview.hoyts.com.au/
This worked for me at Melbourne Central Hoyts for Star Wars on Saturday 1:40pm. Couldn't get it working for Eastland