THE MISSOURI BREAKS opens. Directed by Arthur Penn. Written by ThomasMcGuane. Idiosyncratic, often violent revisionist Western with a rascally Jack Nicholson as de-facto leader of gang of horse thieves forced into face-off with Marlon Brando's deceptively eccentric, lethally efficient regulator. With Randy Quaid, Kathleen Lloyd, Frederic Forest and Harry Dean Stanton.