The good news is that Tammy is not a crappy remake of the 1957 Tammy movie with Debbie Reynolds that spawned three sequels and a TV comedy series. The bad news is that this one is much worse. It’s a desperate and brainless vehicle for Melissa McCarthy, which she wrote herself, with her husband, Ben Falcone, who also directed, with all the efficiency and verve of an abandoned Volkswagen on the Jersey Turnpike. There isn’t a single shred of evidence that either of them has one iota of talent in the world of filmmaking. Tammy is not just a celebration...