Crime scene: Boston Good cop: William "Billy" Costigan, Jr. Bad cop: Colin Sullivan Incident report: In a twisty plotline, an undercover cop posing as a criminal ( Leonardo DiCaprio as Costigan) and an undercover criminal posing as a cop ( Matt Damon as Sullivan) infiltrate each others' organizations. Criminal intent: When Sullivan finds out that Costigan is secretly meeting their boss ( Martin Sheen as Capt. Oliver Queenan), he alerts the bad guys ( Jack Nicholson and crew). The bad guys arrive before the good, and proceed to throw Queenan off the roof.
Andrew Cooper / Warner Brothers
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