The Braveheart star's brother Chris is friends with leading Australian hypnotist Rick Collingwood, and he persuaded his Oscar-winning sibling to learn about the mind-altering process.
And the mind-master insists his famous client is the perfect candidate to put people under his spell.
Collingwood tells Britain's Daily Express, "Mel's a natural, he's got the look as well as piercing blue eyes. He's going to be a great hypnotist.
"Chris talked to Mel about it over the phone and Mel got interested, too."