When a forty-something quartet calling itself the Flossy Posse land in New Orleans for a debaucherous reunion weekend, they’re greeted by a marching band playing Bill Withers’ yacht rock staple “Lovely Day.” The song is… nice, and technically sets the mood on a lyrical level, but it’s not exactly a party anthem. That’s pretty much how all of Girls Trip feels, as it veers radically every few minutes between raunchy comedy and soapy parable. When the screenplay works, it’s because all four leads are very funny (especially relative newcomer Tiffany Haddish), and also because there are no villains in any part of their interpersonal drama. Allegiances are tested, sides are chosen, battles are fought fairly, and then everyone hugs. There’s a rich one and a poor one, an uptight one and a slutty one, but you can understand how and why they’re all friends despite that. If it seems like everybody’s picking on uptight Lisa (Jada Pinkett Smith) at the beginning, that’s only because they know her better than the audience does. Unfortunately, the film is badly edited; there is no reason it needed to be over two hours long, for one thing, and the first half hour is short on humor. The sound is also oddly terrible, which might seem like an odd complaint but which actually matters in a film featuring on-stage cameos from New Edition, P Diddy, Common, Ne-Yo, and (very briefly) Mariah Carey.