Every Cannes Festival (and so, every festival) needs a good shoot-em-up movie. We got ours this year with SICARIO, starring Benicio Del Toro, Emily Blunt, and Josh Brolin in the supporting role. SICARIO's at-times lack of depth and the expeditious nature of certain plot twists make this solid revenge drama imperfect. But an extraordinary lensmanship by Roger Deakins and ominous, queasiness-inducing sound by Tom Ozanich complemented by the tense three-way tug-of-war between the characters played by Blunt, Del Toro and Brolin as they somehow try to work together to take out the top of a drug cartel is a joy to watch. SICARIO hasn't stayed with