Torretto and his crew almost kill dude from FF 7. Shaw kills Han as the beginning of his revenge. By FF8 suddenly the villain from FF 7 is now helping Torretto out with Shaw, and Vin and the whole crew let Shaw join for dinner, making him a part of the "family" like he didn't blow up their friend and try to kill all of them lol.

Watch, in FF 9 Charlize Theron is going to suddenly stop being a ruthless villain and join Vin's family against, I don't know, John Cena.