This film does one thing that a lot of other mob movies don't, it focuses on the investigations that go on within law enforcement . Johnny Depp plays FBI Special Agent Joe Pistone. His character goes undercover as Donnie Brasco and infiltrates the mob. His performance is really well done and facing legend Al Pacino he actually holds is own. Mike Newell's direction fits the piece and allows the viewer to truly get sucked into the world that he his creating. This film is definitley worth a watch and I think is one of Johnny, and Al's greatest works. It made me want to see more of Mike's films.