The Australian actress plays a bereaved mother in the film, and admitted that it brought her own 'fear of loss' to life.
'I still can't even watch some of the scenes because they affect me so deeply and I've never had that [happen] with a film before,' she explained to the Huffington Post.
'Because I'm a producer, I've seen this film a number of times. I probably won't see the film again, if that makes any sense.
'I watch two scenes and I'm like, 'Ugghhh', because it still affects me so deeply. So I think that's the power of parenting and playing this role.'
She continued, 'I think from the minute that you have a child or the minute that I've experienced taking care of a child, being the caretaker of a little one, the power of that and the responsibility of that and so therefore the fear of the loss of that child is extraordinary.'