Some of my favourite proposals!!!

"Look, I guarantee that we'll have tough times. And I guarantee that at some point, one or both of us will want to get out of this thing. But I also guarantee that if I don't ask you to be mine I'll regret it for the rest of my life. Because I know in my heart, you're the only one for me." - The Runaway Bride

'What about my scholarship? What about Paris, which I've never seen in my whole goddamn life?

'What about our marriage?'

It was I who spoke those words, although for a split second I wasn't sure I really had.

'Who said anything about marriage?'

'Me. I'm saying it now.'

'You want to marry me?'

'Yes.' She tilted her head, did not smile, but merely inquired: 'Why?'

I looked her straight in the eye. 'Because,' I said.

'Oh,' she said. 'That's a very good reason.'- Love Story

'You know I was wonderin' like, what are you like doin' for the next er 40 to 50 years of your life?'

'What do you mean?'

'aah I was wonderin' if you wouldn't mind marrying me very much." - Rocky II

PS. There are all I could remember right now, I will keep adding as an when I find more ;)