All the technical promise of decades of “aliens invade” thrillers, from “Independence Day” through “Battle: Lost Angeles,” and the best comic character actors money can buy serve “Transformers: Dark of the Moon” well. The funniest, best-executed film in the talking, bleeding, Earth-protecting robots-that-look-like-cars-and-trucks series, “Moon” delivers the popcorn in gigantic fist-fulls of fun. It’s as head-slappingly stupid as ever, a product placement action film with a Camaro as a hero...