This came from January 2007 and was posted at filmick.com after I sent them the script...

Highlights include:

Unfortunately, the less experienced Thurber removes wholesale the character of Arthur Lecomte ­- in the novel, the original source of the protagonist Art's, sexual confusion. The original largely concerned the love triangle between Art, Arthur, and Phlox, Arthur's co-worker at the library (now Art's supervisor at the bookstore).

Most of Arthur's cues are then largely given to the female roles, Jane and Phlox, thereby making the movie instantly more acceptable to the morals of The Great American Public. Many of Phlox's character beats are also handed over to Jane, transferring all of Phlox's more beguiling traits, leaving her merely annoying.

Read the rest here: http://www.filmick.co.uk/2007/01/mysteries-of-pittsburgh-script-review.html