New "SCRE4M" Cast Members?

News is spreading that Lake Bell is in negotiations to join "SCRE4M" as a cop who went to school with Sidney. Actresses, Ashley Greene of "The Twilight Saga,", Hayden Panettiere "Heroes" and actor, Rory Culkin are also going for key roles in the film.
If the deals are made, Greene would play Campbell's cousin Jill, and Panettiere would play her best friend, a nerdy film geek (kinda like a female Randy). Culkin would play a potential love interest for Jill. Bell is up for the role of a cop who went to school with Sidney when they were younger.