The Hangover Part III is intermittently funny. But a handful of good laughs and outrageous bits do not make up for a weak story with a less-than-stellar supporting cast.

Zach Galifianakis, Bradley Cooper, Ed Helms and Justin Bartha are the Wolfpack (Alan, Phil, Stu & Doug) whom we have come to know and like from the two previous films. Then there’s Ken Jeong as Mr. Chow, who gets way too much screen time. As with Sriracha sauce, a little bit of Chow adds flavor, but an excessive dose can be hard to swallow.

As the Wolfpack takes Alan to an asylum, the gang is detained by bad guy Marshall, played by John Goodman. Doug is held captive while the other three Wolfpackers are sent to recover the gold stolen from Marshall by Chow.

While we in St. Louis all love John Goodman, he adds little here. Same can be said for Heather Graham, Mike Epps and Jeffrey Tambor.

There is one standout among the supporting crew: Melissa McCarthy. As she did in This is 40, she provides the film’s saving grace moment. In THP3, she plays a pawnshop boss who has a beautifully acted flirtation with Alan. Her dash of Sriracha is just the right amount.

The Hangover was funny, outrageous and cleverly assembled. The Hangover Part II was more outrageous, somewhat funny, but lacking in cleverness. Part III has a “let’s just get it done and collect our paychecks” feeling. It’s not as funny as it should have been. The outrageousness seems perfunctory. And the word “clever” will never ever be used in the same sentence as The Hangover Part III, except for this one.

Why should you see this movie? You’re a big Zach Galifianakis fan. You think Mr. Chow was the funniest thing about the first two Hangovers. You have a thing for Paul Rudd. (Sorry, but Justin Bartha seems like a less smarmy Rudd clone.) You dig Melissa McCarthy and want to see her brief, but memorable, scene with Zach G. You hope The Hangover sequels will continue for years to come.

Why should you skip this movie? It’s not that funny. It’ll be on cable in January. There are better movies on other screens. It’ll make you think less of Bradley Cooper (who was so good in Silver Linings Playbook). You have four unwatched episodes of Doomsday Preppers on your DVR.

According to the THP3 trailer, “this year, it ends.” We can hope. III is definitely enough for this franchise.