PaulLyons’s review published on Letterboxd :
Directed by James Mangold, and written by Patrick O'Neil (along with touch-ups by 7 or 8 additional writers), KNIGHT AND DAY tells the story of Roy Miller (Tom Cruise)...a rogue CIA operative who is on the run from everyone with a stolen energy source that could change the world. Through circumstances both intentional and unintentional, Roy meets June Havens (Cameron Diaz)...a civilian restorer of vintage classic cars who just happens to be at the same Wichita airport where Roy is about to catch a flight. With a little help, and to June's horror...the two are soon thrust together in a whirlwind adventure of assassins, planes, trains, and flying automobiles...June does her best to get away from Roy (for obvious reasons), yet realizes after a while that she really needs him to survive...especially since the folks at the CIA...Director George (Viola Davis) and Fitzgerald (Peter Sarsgaard) are of little to no help...and may in fact place her in more danger than what Roy has to offer. Yet when it comes to Roy, it's hard to tell what is the truth and what is not. Is he crazy, or is he the only sane person in the CIA? Roy says he's trying to save the life of Simon Feck (Paul Dano), the young inventor of the stolen energy source, and prevent the source from getting into the hands of merciless arms dealer Antonio (Jordi Mollà)...yet is that what's really going on?
I don't care what anybody says...I really liked KNIGHT AND DAY. It's fun and funny...It reminds me a little bit of that old Audrey Hepburn/Cary Grant movie CHARADE, yet more over-the-top...KNIGHT AND DAY has lots of humor, though I wouldn't exactly call it a comedy. There are adults in KNIGHT AND DAY...yet it's not an "adult" movie. The fools at 20th Century Fox thought to market the movie as an action-comedy for adults...which is ridiculous. All in all, KNIGHT & DAY is essentially a James Bond movie, with a sillier tone. Roy is a 007-like hero...who can say and do anything and everything...and he's 100% indestructible. June is not much different than the female lead, Tiffany Case (Jill Saint John), in DIAMONDS ARE FOREVER...a fully capable woman who poorly handles a machine gun. Tom Cruise is perfect as Roy...doing a bit of a send-up on his own persona as an action hero, and Cameron Diaz is fun and charming as she always tends to be. Director James Mangold is not really an action guy...yet he does okay with KNIGHT AND DAY, creating an awkward tension which perfectly suits the relationship between Roy and June. The movie has a plot, yet KNIGHT AND DAY is really about Roy and June...and the bond they form while struggling to stay alive...Though by no means perfect, KNIGHT AND DAY is a fun, entertaining movie