Brian Helgeland wrote the screenplay of a film.
He is most known for writing the screenplays for L.A. Confidential -LRB- for which he received the Academy Award for Best Adapted Screenplay -RRB- , Mystic River , and A Nightmare on Elm Street 4 : The Dream Master .	L.A. Confidential	L.A. Confidential (film)	Academy Award for Best Adapted Screenplay	Academy Award for Best Adapted Screenplay	Mystic River	Mystic River (film)
L.A. Confidential is a 1997 American neo-noir crime film directed , produced and co-written by Curtis Hanson .	Curtis Hanson	Curtis Hanson	L.A. Confidential	L.A. Confidential	neo-noir	neo-noir	crime film	crime film	Confidential	Confidential (magazine)
Mystic River is a 2003 American mystery drama film directed and scored by Clint Eastwood .	Clint Eastwood	Clint Eastwood	Mystic River	Mystic River (novel)	mystery	mystery film	drama film	drama film
