I understand if you don't like the Fast & Furious franchise. They're easy to dismiss as loud, dumb car flicks for an image-obsessed MTV generation. The cast looks hand-picked out of Muscle and Fitness magazine and the Victoria's Secret catalogue. You're not wrong. But, what could be considered "stupid" has evolved into "silly" fun, thanks to Justin Lin, who directed the last four installments, and his writer, Chris Morgan. Through sly reinvention and subtle refinement, they've managed to turn this niche franchise into blockbuster entertainment, going bigger and improving the formula with each new chapter.