Sean Penn, Kevin Bacon Join Clint Eastwood

Sean Penn is set and Kevin Bacon is in final negotiations to star in Warner Bros. Pictures/Village Roadshow Prods.' "Mystic River," which Clint Eastwood will direct and produce, reports The Hollywood Reporter

Based on Dennis Lehane's novel of the same name, "Mystic" tells the story of three childhood friends -- Sean, Dave and Jimmy -- who are reunited 25 years later when they become linked in a murder investigation after Jimmy's oldest daughter is killed.

Penn will play Jimmy, an ex-con ready to take justice into his own hands. Bacon would play Sean, a policeman on duty when Jimmy's daughter is murdered who responds to the call.

The project will go into production in September in Boston and Los Angeles.