Spa Weekend      Director: Jon Lucas, Scott MooreCert: 15AStarring: Isla Fisher, Leslie Mann, Michelle Buteau, Anna Faris, Erika Heynatz, Dominic Ona-ArikiRunning Time: 1 hr 37 minsThe admirable Bridesmaids has cast a long, long shadow. Fully 15 years after that film landed, it seems we are still trying to replicate its delightfully reprehensible energy. Few pale successors have been quite so feeble as this wheezing runt of a feature. You can learn everything you need to know from the poster. Indeed, the title alone does that work. Spa Weekend? Four women go to such a resort and behave inexcusably on the way to a storm of inspirational rebonding. Pat yourself on the back if you guessed one of them falls for a blond yoga instructor with a straight-to-Netflix Prince Charming smile.Lest it sound as if we are demonising a female-dominated genre, it is worth noting Jon Lucas and Scott Moore, writer-directors, cut their teeth ensuring that the Hangover films fast outstayed their welcome. This latest outbreak of lads or lassies behaving badly stars Anna Faris as the put-upon one, Michelle Buteau as the assertive one, Leslie Mann as the workaholic one and Isla Fisher as the insane one. The first three head for the spa without telling the fourth, whom they find a bit trying. They’re taken aback when that inexplicably Australian lifetime pal yells her way into the pool area. Insofar as the film has a plot, it involves Anna, Michelle and Leslie coming to terms with their qualified affection for Isla. Oh, and Leslie has to get it on with the yoga guy.You’d have trouble arguing that Spa Weekend was offensive. That is part of the problem. The closest it gets to the borderline-transgressive sequences in The Hangover or Bridesmaids is when Buteau’s character makes some decent old-lady gags about her former partner’s superannuated girlfriend. This comedy is mostly about driving golf carts over sand dunes and misidentifying coppers as strippers. Nothing here will shock (or even awaken) the frailest maiden aunt.Buteau and Fisher come closest to achieving redeeming-factor status. The former chews the inadequate dialogue into mulch. The latter makes her character as cacophonously infuriating as the script believes her to be. Indeed, if this sorry project does any good, it might be to remind Hollywood that they haven’t yet made the most of Fisher’s talents.In cinemas from Friday, August 21st