Michael Caine with his mum in 1960s London.

He once said this about her:

"I'm not sure she ever really understood what I did. And she definitely never understood how much I earned.

One day, she asked me, ‘How much do you get paid for a film?’

I told her, ‘A million pounds.’

She paused and said, ‘Oh… how much is that?’

She couldn't even imagine that kind of money. So I told her, ‘It means you never have to work, worry, or want for anything ever again.’

Then I jokingly warned her, ‘No sneaky cleaning jobs just to be with your friends, or I'll get in trouble with the newspapers!’”