Sir Sam Neill is back at work after battling an aggressive blood cancer, starring in an adaptation of Australian Author Liane Moriarty's latest book.

During his health scare the 75-year-old wrote a memoir titled "Did I Ever Tell You This."

Neill says he was forced to write things down quickly as he wasn't sure how long he'd live.

He says it started off purely as a personal project.

"I thought I'd cheer myself up with remembering things, trying to make sense of my life as much as anything. And if it cheered me up, it might cheer a few others up at the same time."

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