Ben AffleckBen AffleckBen Affleck used to be a right Jack the lad.

But now we're seeing a softer side to Mr Affleck.

But what has brought on this transformation?

Fatherhood, that's what.

And Ben is a hands-on and happy dad.

"Yes, I've changed diapers," he told People.

"Parenthood, the whole thing is wonderful. All the cliches that all the people bore you with are, in fact, true."

"I've never been very judicious about my own behavior or choices until they had an impact on people other than me," Ben told USA Today.

"Obviously, my wife, and my daughter, who's going to have my last name - I don't want her to mutter it over a drink. I want her to be proud of her old man."

Ben Affleck and Jennifer GarnerBen Affleck and Jennifer GarnerBless his little cottons.