I'd meant to post up a review when I saw the film last week, but hey, better late than never.

AICN's Capone encapsulates the movie well: 

"KNIGHT AND DAY almost floats off the screen with cottonball weightlessness, but Cruise and his sly grin--and the attitude that fuels that grin--make this film a harmless couple hours spent watching attractive people pretend to get placed in the midst of some dangerous situations and come out the other side smiling and a little bit in love."

Say what you will about Cruise, but the guy is still one hell of a charming bastard onscreen when given the right role.  His character also has some eccentric quirks, and is perhaps a little bit nuts: it's essentially Cruise being Cruise, and it works.  His easy going, roguish personality allows the main appeal of the film to project: finding out who exactly Roy Miller is and where his allegiances lie, all through the eyes of a wholly different protagonist.  (Diaz, in a befuddled, scatterbrained role that makes a good foil for Cruise's with-it, under-control character.)  Unfortunately, this is the sort of movie where the premise starts out strong, but gradually loses steam the more it goes on.  This deterioration continues well into an unexpected third act that drags on far longer than it should, and culminates into a cluster-cuss of double twists and half-baked shifting motives.  The groan-inducing throwback to actions and lines called forth from earlier in the film places the last nail into one tacky finale.

What does remain consistent is John Powell's music score.  I'm eagerly awaiting Varese Sarabande's soundtrack release, but I loved what I heard in the movie, and I'm inclined to say it's my second favorite film score this year after Powell's own How To Train Your Dragon. (As I've said in this thread, it's a shame he couldn't go three for three this year with Green Zone.)  Like a tango in battle mode, K&D's music is fun, sexy, and spirited: the use of modern electronics and traditional orchestra, along with eclectic instrumentation such as an accordion and Spanish acoustics and percussion (can't wait to hear the "Bull Run" track again!) certainly gives the film its own, flavorful identity.

I think it's sad when the studio has to blame the world cup for the less than stellar opening weekend for this.

Soccer, that's like football without pads right?

I had a feeling they'd have an uphill battle selling this movie.  Cruise is pretty decent in the right role, but even if casting him as an eccentric bad-ass might suite his character (halfway), I'm not sure it's the sort of thing the viewing public wants to pay money to see.

Also am not a fan of the title at all; it's as if they tried to be clever but didn't have much luck with it.  (From what I've read it doesn't even have any bearing on the story.)

Nice quote from The Atlantic:
"Like 2005's Mr. and Mrs. Smith, another film that began with the promise of romantic chemistry before veering onto the easier (and more lucrative) terrain of body-count, Knight and Day is vastly more at ease with the bang-bang than the kiss-kiss, let alone any talk-talk."

I'm not a fan of Cruise, but the film did look entertaining. My sister saw it and enjoyed it quite a bit too. Maybe I'll check out a matinée or something. If nothing else, this film looked worlds better than the similar "Killers" that came out only weeks before it: http://www.imdb.com/title/tt1103153/

Indeed. Assclown Cootcher isn't an international spy, anymore than Shia Lebeouf is an action star... (referring to Eagle Eye).

And I can't stand Katherine Heigl as an actress OR person; she's the embodiment of all the neurotic thoughts that women have about men...she practically SELLS the philosophy that women should think men are dogs...or at least, that's the audience she caters to, anyway. She probably laughs her ass off, seeing the kind of people that she gets to come to her movies...

Summary: Teh Bern dose nott liek Teh Heigl.

Agree on both points. I just don't get why either actor is as bankable as they are.

There're girls who find them attractive. Don't know why; they're narcissistic, self-worshiping douche bags; and here, I thought girls hated guys like that...

My lack of patience made me buy up the iTunes digital release instead.  Made a Youtube upload of said Bull Run track.  Olé!

Bull Run:
http://www.youtube.com/watch?v=mzVJSWW__7w

I caught this in the cinema today and agree almost entirely with Angela's review.  Cruise's charm does shine through and that combined with some well-shot, high-octane action had me surprised to be loving the first third of the movie as much as I did.

The second third then shifts to being passable and the final third a bore.  Not so much really changes from the beginning and I suppose that's the problem - as many reviews have stated it's just one action scene after another, with little more to connect them plot-wise than some sleeping drug-induced camera fades.  It's a shame as the final action sequences are good over-the-top fun but the previous ones had me tired out by that point.  Still, for a shoot-em-up action movie you could certainly do far worse.

Also agreed about John Powell's score, which on a few occasions managed to grab me despite all the crashes and explosions layered over it.  Did anyone grab the score release?