A disappointment after "Michael Clayton," considering many of the same people (Gilroy, Clooney, Wilkinson) were involved. This is slick, overly complicated, and hollow at the core.

Slightly confusing and complicated. It's two steps ahead and constantly expects the audience to follow along.

"A romance aiming at a tone of jazz-riff larkishness but somewhat undermined in that pursuit by the washboard-stiffness of its main characters." - Ryan Stewart

Really good but maybe a little too slick. Paul Giamatti is amazing.

A smart, witty film that uses corporate espionage as a backdrop for a creative romantic comedy. Gilroy's script is dense and complicated, but always clear, and provides the two leads with ample opportunity to show how movie star charisma can be mixed with shrewdly insightful acting to build great performances. Roberts is especially good, dashing off her lines with spirited ease and happy authority, nicely tapping into her character's surplus guile.

Passes the time.

I can't really say why (except maybe I just didn't care what happened to these two idiots) but this film annoyed me to no end and I barely trudged to the end.

The chemistry between Roberts and Owen is awful. (It doesn't help to have seen them in Closer) Overall that destroys the cat and mouse game, however the film is worth the while for the twists and the great supporting cast.

Duplicity is one of those movies that is based on complex twists and turns such that any enjoyment or satisfaction comes only from solving the puzzle and not from anything else the film has to offer. Even if you do predict the outcome - So what? None of the characters are particularly likeable or have any depth. With an all star cast and probably large budget. This could do much better.

Espionage comedies can be fun in a Mr. and Mrs. Smith kind of way, but this tried so hard to trick us that it tripped on itself.

If you focus strictly at the surface (or, the mountainous, cavernous windy-road MacGuffin "surprise!" ending surface) then you'll be disappointed; it's a love story hiding in a spy thriller. Seriously, why should you care about haircare pharmaceutical espionage? From the very beginning it's obvious this is more Lover Come Back than Ocean's 11, differences being Roberts is no Doris Day, and Clive hasn't come out yet. Add "Romance" to the listed genres, and this will be a cult classic.

Watch out for this Tony Gilroy fellow! Who else is psyched for "Bourne Legacy"?

I get what Gilroy is going for. Convoluted plotting, bantering double-crossing love-interests. On paper it sounds great. Roberts I have little patience with in general and because her teaming with the one-note Owen yields absolutely no chemistry, the movie is a thoroughly charmless affair.

Mildly entertaining corporate espionage angle superimposed over a more unique romance angle (albeit one played out rather poorly). 'Twist' is serviceable but kinda perfunctory. Nice filming at times, bland as hell as others.

They tried too hard..