AceShowbiz -

Lining up to accompany Anna Faris in the actress-starred untitled comedy, "American Idol" runner-up Katharine McPhee, Emma Stone, Rumer Willis, Kat Dennings, and Dana Goodman have all agreed to get their names put in the project's cast list, The Hollywood Reporter has revealed.

A joint production of Columbia Pictures and Happy Madison Productions, pic focuses on Farris' character, a Playboy bunny kicked out of the Playboy Mansion, who becomes the house mother to the lamest sorority on campus. The quintet's inclusion is learned to fill in the major roles of the sorority sisters, thereby solidifying the flick as the first female-driven comedy to come out of the production company.

McPhee, who will make her studio acting debut here, is said to portray a pregnant hippie while Stone will become the president of the sorority. Willis, in the meantime, is billed as an insecure young woman who wears a back brace with Dennings and Goodman playing a women's studies feminist and the sister who keeps switching majors, respectively.

Apart from the five, the movie also casts "Made of Honor" star Sarah Wright to act as a conniving young woman from a popular sorority. Meanwhile, Fred Wolf has been tapped to direct from script penned by "Legally Blonde" scribes Karen McCullah Lutz and Kirsten Smith with Heather Parry sitting on the producer's chair.