John Travolta and Nikki Blonsky in HairsprayHAIRSPRAY

Adam Shankman's Hairspray, adapted from the long-running Broadway musical, is like a sugar high that lasts 105 minutes. Yet it's a high that you don't crash from afterwards; days after seeing it, you may still find yourself in thrall to its infectious exuberance. Not only is the film the happiest surprise of the summer, it's the happiest surprise of the year - a giggly pop fantasia exploding with exhilaration and imagination. Audience members who don't like Hairspray won't be people who don't care for musicals; they'll be people who don't much care for movies.

Ian Somerhalder in The Rules of AttractionTHE RULES OF ATTRACTION

Roger Avary's The Rules of Attraction, based on yet another Bret Easton Ellis (Less Than Zero, American Psycho) novel about soulless, loathsome yuppie scumbags of the '80s, is vile, venal, and sometimes shockingly distasteful. I loved it.

Sean Penn and Dakota Fanning in I Am SamI AM SAM

How does one begin to discuss the blinding idiocies of I Am Sam? This comic weepie about Sam (Sean Penn), a mentally challenged Starbucks employee trying to retain custody of his young daughter Lucy (Dakota Fanning), is so shockingly offensive, both thematically and as a work of cinema, as to defy rational analysis, so here's a brief checklist of what made me want to bash my head in:

Leelee Sobieski in The Glass HouseTHE GLASS HOUSE

The domestic thriller The Glass House is obvious and over-the-top from the word go, and that's what I liked about it. It takes true chutzpah to pull off a movie with visuals this baroque and plotting this convoluted; it might be the most trashily enjoyable work of its kind since 1997's The Devil's Advocate. Like that Al Pacino craptacular, The Glass House has no higher agenda than showing audiences, in horror-flick form, the luridness behind ultra-rich "perfection," and it's so up-front about its limited ambitions, and so earnestly performed by its top-tier cast, that you can easily lean back and enjoy it for the stylish dreck it is. Is it a good movie? Nah. An entertaining one? Hell, yes.

Helen Mirren and Jack Nicholson in The PledgeTHE PLEDGE

Sean Penn is one of the few dependably downbeat figures in American film, and those who like their dramas moody, atmospheric, and richly detailed will get some initial pleasure with The Pledge, Mr. Penn's third directorial outing.

Michelle Pfeiffer and Harrison Ford in What Lies BeneathWHAT LIES BENEATH

As far as I can tell, the only people who might enjoy Robert Zemeckis' supernatural thriller What Lies Beneath are the ones that haven't yet seen its trailer, but I'm not sure if anyone qualifies anymore. That's not just because the omnipresent trailer gives away far too many plot twists, but seeing the preview makes watching the entire first hour of the film pointless. Movie trailers have been getting worse and worse about providing too much information; this is the first time they came close to spoiling an entire movie for me.