The actress not lookin like jessica and just not being that attractive to me (like a pale twig) is a bummer too, but whatever. As far as the other chick with the titties who could've been her, possibly playing someone else... like Spider Woman... it's funny b/c back when I first got on the alias books, there were those reports about how Jessica Jones was originally supposed to be Jessica Drew (i.e. Spider Woman and Bendis's favorite superheroine) but the reported rumor was Marvel didn't want their white female superhero gettin her guts rearranged and inseminated by Luke Cage...
So Bendis created his own character, gave her the same first name as Drew, same detective type job as Drew, made her teamup with Drew early in the book, and had it be revealed that Cage had smashed Drew anyway (off panel) along with She-Hulk, Tigra and a buncha other superheroines.