LONG AGO in the annals of historyโthe 1600s, I believeโTom Cruise and Cameron Diaz were pert, attractive stars of the cinema, spearheading big-budget Hollywood picture shows and charming their audiences with their clear complexions and adept skills at walking and talking. In the intervening centuries, however, both Cruise and Diaz have turned into gently defective androids laminated inside hot plastic. As for the walking and talking? They can manage, but not without inducing a wriggling feeling of discomfort in the audienceโthe same discomfort you might experience watching a crippled child cross a busy street, or a very expensive robot bump into a wall.
Some of this actually works in Knight and Day‘s favor, a movie whose entire plot hinges on the question, “Um, so Tom Cruise is totally crazy, right?” He plays the weirdly grinning Roy Miller, who kidnaps June Havens (Diaz) by claiming to be a secret agent on the run trying to protect both her and a perpetual energy machine from an evil FBI agent (a swollen-looking Peter Sarsgaard). June is terrified by Roy’s obvious insanity whilst simultaneously smitten by his ability to assassinate dozens of feds as he creepily smiles and gazes into her eyes, repeating her name, “June,” over and over again.
Considering Knight and Day‘s overcooked plot, it manages a fairly sophisticated sense of humor. Diaz is only mildly awful, and Cruise’s performance succeeds because he doesn’t play a human so much as cartoon character. The action is ludicrous, and the CGI is pretty terribleโa motorcycle chase amid the running of the bulls in Pamplona looks particularly crappyโbut the movie rarely pauses to take itself seriously. At its best, it approaches the action-packed giddiness of Romancing the Stone or True Lies, and at its worst, it’s still as entertaining as watching an expensive robot walk into a wall.

Why is the film called “Knight and Day” if neither of them are named either “Knight” nor “Day?” Shouldn’t a title like that be a clever bit of word play? Unless he’s an ACTUAL knight of some kind. Is he Ned? Is Tom “Day” Cruise a Knight in this film? And if not — or even if so, really — is the title referenced in the script? If so, how do they explain that? Does Cameron Diaz call Tom a knight? Do the writers not understand the significance of the letter “k?”
I cannot watch this film until I get an answer on this.
He is not a knight, but I think maybe one of his aliases might be Knight? Also, for like two seconds they show that the perpetual energy thingy is housed in a little metallic toy knight.
Also, some of the scenes take place during the day.
They could have called the movie “Cars and Explosions,” which would have been a more accurate title.