Mandy Moore In Talks To Join Kevin Costner Onscreen

Film tells story of family forced to deal with death of its father and husband.

Mandy Moore isn't letting the release of her upcoming album interfere with her film career. The pop princess is currently in talks to join Erika Christensen ("Swimfan") and Kevin Costner in the family drama "The Upside of Anger."

Scheduled to begin filming in the fall, "The Upside of Anger" is reportedly the story of four toughened daughters and their mother, played by Joan Allen, who must deal with the sudden loss of their father and husband. Costner, last seen in the 2002 box-office flop "Dragonfly" but well known for flicks like "The Bodyguard," "Dances With Wolves" and "JFK," will play a friend of the family. Lauren Ambrose (HBO's "Six Feet Under") and Alicia Witt ("Two Weeks Notice") are in negotiations to join Moore and Christensen as the grieving siblings.

Known first for her glistening pop records and TV appearances, Moore broke into movies about two years ago with "The Princess Diaries" and provided a voice in "Dr. Doolittle 2." She showed depth in the tear-jerking Nicolas-Sparks-novel-turned-flick "A Walk to Remember" and has since finished three yet-to-be-released films: "Try 17" opposite Elijah Wood (see "Elijah Wood Plays DJ For 'Try 17' Co-Star Mandy Moore"), the Baptist high school comedy "Saved" with Patrick Fugit ("Almost Famous") and "How to Deal," a romantic comedy set for release in July (see "For Mandy Moore, 'How To Deal' Involves A Haircut").

Mandy's next record, Coverage, is a collection of hits from the '60s, '70s and '80s, originally recorded by artists ranging from Elton John and Cat Stevens to Joan Armatrading, all tracked with a live band in a converted garage with Andrew W.K. producer John Fields (see "Mandy Moore's Plans For 2003: Covers Record, Three Movies").