Russell told People.com why he is in awe of his 65-year-old co-star in The Tempest at Saturday's premiere of the film in New York City.
Brand, 35, said: 'Confidence, potency, female energy and roaring estrogen.
'She's got that potency, doesn't she? That's why she can play queens and leaders.'
Katy Perry's fiancé, who has recently released his new book Booky Wook 2, added: 'Women are, of course, powerful, feral creatures – the Earth being so female, the cosmos, even, perhaps being a female instinct, creating life, if women get in tune to that energy, it will destroy us all.'