It appears that Spears has been replaced by Pixie Lott (pictured), one of the gazillion identikit, young, blond, sort-of-musician sort-of-actress, types whom I'm no longer able to distinguish from one another. The Deadline piece though focuses more on the announcement that Joseph will be played by Sam Rockwell (Hitchhiker's Guide to the Galaxy, Iron Man 2). Filming is due to take place in Bethlehem, Maryland in August under the direction of Peter Hewitt. Bette Midler and Kim Cattrall are also lined up to star.
Empire and Variety also have the story, with the latter adding that the film will actually be set in the seventies.