The 37-year-old actress, who adopted son Jackson in March 2012, said she would happily have many more if she could guarantee they would be like him, reported Femalefirst.
"More? I don't know. I mean, if all my kids could be like Jackson, I'd have 10 more right now. My mom is always asking me when," she said.
The actress cut off her long blonde hair for her role as Furiosa in 'Mad Max 4: Fury Road' and loves the freedom that comes with having short hair.