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Ronin is a 1998 American neo-noir action film written by David Mamet, produced by Joel Silver and Robert F. Colesberry, and directed by John Frankenheimer. It stars Robert De Niro, Jean Reno, Natascha McElhone, Stellan Skarsgård, Sean Bean, and Jonathan Pryce. The film follows four skilled professional assassins who are hired to retrieve a briefcase in Paris.