Director Chris Weitz was originally unsure if Taylor would have the heft to pull off the role, (since New Moon sees Jacob grow to over 6 feet of strapping muscle man/wolf), and Twi-hards were sent into a panicked frenzy. Happily, he decided to keep him on, and peace has returned to the land. I'm guessing Taylor's going to need to hit the gym as part of his contract and can only hope he'll bring skinny scrawny Robert Pattinson along with him.
*With small amounts of personal shame I count myself among these folks, noting that I fully recognize the absence of literary value and lack of editing evident in the Twilight series. I am not obsessed. Rather, I have a healthy appreciation for the appeal of the series. And yes, there was that one time that I said I'd leave my husband for Edward Cullen, but I was confused and awash in overly long gushy descriptions of his fabulousness.