The `Arthur` star - who famously sports long, dark locks - would be open to starring in a movie as the bald former war-time British Prime Minister, as long as his `Firework` singer spouse was also included.
Speaking at the European premiere of `Arthur`, held at Cineworld at London`s O2, Russell admitted he`d shave his head if the right part came along, telling BANG Showbiz: "Depends who I`m playing... Winston Churchill? Alright! Me and Katy as Churchill and Churchill`s bodyguard. I`m up for it!"
As well as playing the late Churchill, the comedian, who has written two autobiographies, `My Booky Wook` and sequel `Booky Wook 2: This Time It`s Personal` - covering his battle with drugs and alcohol and notorious womanising before he met Katy - would like to see a film made of his life, but had some unusual choices as to who should play him.
He said: "I`d love for a film to be made of my life. I`d have either Harry Potter [Daniel Radcliffe] or Natalie Portman playing me."
Russell, 35, also said he as "immensely proud" of `Arthur` - about a playboy billionaire who stands to lose his inheritance if he marries a girl his family don`t approve of - and feels it is as fun as inhaling "paint fumes"
He added: "I`m immensely proud of it, it`s really funny and rather romantic. What a better way to spend 90 minutes, except perhaps in some peculiar stupor induced by paint fumes.
"I`d either watch `Arthur` or inhale paint deeply. Or inhale paint deeply then watch `Arthur`. Or don`t inhale paint it`s dangerous."