I need your help

Everyone loves a reformed bad boy, right? The man the heroine's mother always warned her about. The man the heroine herself would rather have nothing to do with, but of course she still falls for him.

So why am I struggling to come up with movie examples of rom-coms where the bad boy is reformed through the love of the right woman? It really shouldn't be so hard!

So far I've come up with the following examples:
Johnny Castle in Dirty Dancing. The bad boy who turns out not to be so bad after all.Matthew McConaughey in How to Lose a Guy in 10 Days. The heartless womaniser who finds the one woman he wants to settle down with.Flynn Rider in Disney's Tangled. Edward Cullen in Twilight.But there must be more, and this is where I need your help. Can you suggest any other movies with a bad boy hero?

PS: This is serious research, I promise, not just an excuse to indulge a bad boy fetish!