If 'Machete Kills' is any indication, director Robert Rodriguez has exceptional taste in women. Just look at the cast, which is filled with names like Jessica Alba, an all-grown-up Alexa Vega and Amber Heard. Not only that, but he knows what the fans like, seeing them sexy and guns a blazin'. Just watch out for Sofia Vergara. Her new 'Machete Kills' poster reveals her sexiness could also mean the