Damon and Affleck would star in the film but it's unknown if it will be a straight up period piece similar to Goodfellas. Bulger was a major influence on Jack Nicholson's character Frank Costello in Martin Scorsese's The Departed. I wouldn't be shocked to see Martin Scorsese attached as a producer down the line along with familiar faces in supporting roles. I'm beyond exicted to see another crime drama directed by Affleck and having it written by Winter is a giant bonus. I'm a massive fan of Ben as a director and I really wish he sticks to this sort of genre for at least a couple more films. He's been offered more commerical films like Man of Steel and Stephen King's The Stand but I'd prefer he'd stick to these type of movies.
If I had to come up with one actor that needs to be included in this film it's Alec Baldwin. Alec played such an amazing gangster in The Cooler and a ruthless salesman in Glenngary Glen Ross. It would be a shame for him to retire before going all out that a film like this could allow him to do. I felt he was short changed in The Departed since he plays such great villains.