All Sienna Miller Scenes Cut From New Johnny Depp Film

Sienna Miller
Jury member actress Sienna Miller poses on the red carpet as she arrives for the screening of the film "Macbeth" in competition at the 68th Cannes Film Festival in Cannes, southern France, May 23, 2015. Yves Herman/Reuters

British actress Sienna Miller has been completely cut from a new film chronicling the life of 1970s Boston gangster Whitey Bulger, who is played by Johnny Depp.

In an interview with the Boston Globe, director Scott Cooper confirmed that Miller's scenes in the film, which is called Black Mass, had not been included in the final cut, as he wanted to narrow the film's scope. Miller would have been playing Depp's girlfriend, Catherine Greig. "It came down to narrative choices," Cooper said.

Last month, Miller spoke to about her preperations for her portrayal of Greig. "She was quite a character from South Boston," Miller said, "The accent was something I really focused on because playing someone from Southie, you don't want to mess that up. Hopefully I've managed to pull that off, although I think everyone's like, 'How can you be English and think you can do that?'"

Miller's career has been somewhat resurrected over the last year with the releases of American Sniper and Foxcatcher. She was also asked to join the Cannes jury to decide the Jury Prize.

The former model began her career alongside Jude Law in the 2004 film Alfie. Law and Miller got engaged a month after the film's release. When Law's affair with the couple's babysitter led to a tabloid frenzy, Miller's career became tainted. This period in Miller's life coincided with her acting in a number of films that flopped.

Black Mass tells the true story of the alliance between Irish mobster James 'Whitey' Bulger and the FBI as they attempt to take out their common enemy,the Italian mob, in 1970s Boston.

The cast of Black Mass also includes Benedict Cumberbatch, Joel Edgerton, Dakota Johnson, Juno Temple and Kevin Bacon.

The film will have its world premiere at the Venice Film Festival on Friday, and will be released in U.S. theaters from September 18 and U.K. cinemas from September 25.