You cannot say that movie reviewers are incorrect in their interpretation of Watchmen the film if you haven't seen the film yourself.
Anyone with two brain cells to rub together can tell that the film leaves out lots of things from the book. However, for those of us who haven't read the book, we can't tell exactly what is missing, and thus must raise our frustrations with how the film presents itself on its own merits. I don't give a shit if the graphic novel provides an in-depth backstory for Silk Spectre that explains why she wouldn't beat the shit out of an attempted rapist - the movie gives us no backstory on her, little on Silk Spectre II, and thus, in my book, fails as an attempt at building characters.
This is not a commentary on the graphic novel. It is a commentary on the film. They are two separate mediums - please keep that in mind when you are responding to a review.