For those who exited The Hangover Part II feeling their time and money well spent, this is the hair of the dog that bit you. The rest of humanity might consider a rabies vaccination before entering. This time, franchise creator Todd Phillips does away with the customary Mike Tyson cameo, blackout-induced flashback structure, and trained monkey that’s capable of hitting his mark more efficiently than his human counterparts. He also manages to amputate what few potential laughs the premise promised. It’s abduction-by-billing as mobster John Goodman kidnaps the least famous member of the Wolfpack (Justin Bartha), leaving his cronies three days (and an abundance of screen time) in which to track down comic relief in the form of coke-snorting, zany Mr. Chow (Ken Jeong). There’s barely a semblance of a script to guide them, leaving Bradley Cooper room to preen, Ed Helms time to shriek, and enough of Zack Galifianakis’s mentally dwarfed boychild to last a lifetime. With Melissa McCarthy, Heather Graham, and Mike Epps.