Obviously, Roger Ebert Hated it.
I will preface this argument with the fact that I know, not even having seen it, that the movie doesn’t follow the plot of the book exactly.
That being said, let me just respond to Roger Ebert with the suggestion that he read the book before completely dismissing the plot as improbable. And may I also sugget that Rachel Cohn and David Levithan, despite their status as “adults” generally have a bit more insight into why 17 year olds do what they do than Mr. Ebert generally displays.
Of course, I haven’t seen the movie, so I can’t give an opinion on its merit just yet, but Roger Ebert’s disgust (how unlike him) does not lessen my desire to see it.