Johnny Depp, Joel Edgerton, Benedict Cumberbatch, Jesse Plemons, Kevin Bacon, David Harbour, Dakota Johnson, Julianne Nicholson, Adam Scott, Corey Stoll, Juno Temple — Scott Cooper's "Black Mass" is not wanting in characters or stars to play them, but a movie can only hold so much, and unfortunately one had to go: the underrated and very talented Sienna Miller. So, why was she left on the cutting room floor?
“It came down to narrative choices,” the director told Boston Globe.
