Like “The Usual Suspects,” this gun-toting double-cross movie isn’t about deep insights. It’s about slimy people, crazy plot twists, and devious motives. Densly plotted, “The Way of the Gun” was penned and directed by Christopher McQuarrie, who won an Oscar for co-writing “The Usual Suspects.” Familiar territory, yes, but it’s territory which if done well, I enjoy. I expected the dialogue to be snappier, but it was interesting how sparse it was. Characters never really said more than they had to, leaving the audience to figure out their motives for themselves. I’d like to see it again, just to see how many little details I missed.