Amy Adams Experiencing 'Doubt'

Viola Davis has signed on and Amy Adams is in talks to join the ensemble cast of "Doubt."

John Patrick Shanley is directing the big screen version of his Tony-winning play, already set to star Meryl Streep and Philip Seymour Hoffman.

Production began last week in New York City with Scott Rudin producing for Miramax.

According to The Hollywood Reporter, Hoffman will play Father Flynn, a priest who becomes target of an investigation after his school's Mother Superior (Streep) begins to suspect his relationship with one of the students. Davis will play the mother of the student, while Adams is in negotiations to play Sister James, a young nun who may have witnessed Father Flynn's behaviors.

Davis won a Tony in 2001 for August Wilson's "King Hedley II." She was most recently seen on the small screen in "Traveler" and "Jesse Stone: Sea Change" and on the big screen in "Disturbia."

Adams is currently earning Oscar buzz for singing and dancing her way through "Enchanted." A former Academy Award nominee for "Junebug," Adams has "Charlie Wilson's War" and "Miss Pettigrew Lives for a Day" on tap.