FOX Beat: Black Mass Co-stars Rory Cochrane, Jesse Plemons, and Peter Sarsgaard

Warner Bros.' "Black Mass," starring Johnny Depp as Boston gangster Whitey Bulger, premiered at the box-office with $23.4 million.

FOX 5's Kevin McCarthy spoke with co-stars Rory Cochrane, Jesse Plemons, and Peter Sarsgaard about working with Depp and about their roles in the film.

Get more on the film here: https://twitter.com/BlackMassMovie