After several false starts, the fourth film in George Miller's post-apocalyptic franchise finally started filming in Namibia in February, with Tom Hardy in the iconic role, and Charlize Theron as his co-star.
By that time, Palmer, who was attached to the project in an earlier incarnation, had already travelled some distance down an alternative route.
When rain delayed production by turning Australia's Outback into a lush green oasis, she accepted another plum, action girl role - in the teen sci-fi thriller I Am Number Four - instead.
"It was a great role for me,' Palmer says of superalien Six.
Palmer's most recent project is a world apart from either of those two films.
The 26-year-old was in town for the Australian premiere of the low-budget thriller Wish You Were Here, co-starring Joel Edgerton and Felicity Price.
Palmer plays Price's sister in the film, about two couples who travel to Cambodia together for a holiday, where one of their party disappears.