"American Idol" runner-up Katharine McPhee is set to make her feature film debut as the star of the indie dark romantic comedy "The Last Caller." The story is described as a coming-of-age tale about a

"American Idol" runner-up Katharine McPhee is set to make her feature film debut as the star of the indie dark romantic comedy "The Last Caller." Penned by Michael Albanese, the story is described as a coming-of-age tale about a self-obsessed woman (McPhee) who searches for love, hope and meaning during a few random events with other urban seekers.

"This is the first thing that I read that I really wanted to do," says McPhee, who added that the role doesn't involve singing. "I'm up for a couple of big studio projects, but they weren't starring roles. I wanted to start off doing something a little different. It's something that a lot of people wouldn't expect me doing."

In fact, the Southern California native said the film's protagonist "is definitely a little darker than me."

McPhee, who was edged out by Taylor Hicks as winner of the fifth season of "American Idol," landed at No. 2 The Billboard 200 with her 2006 self-titled album debut on RCA/19 Recordings.