Eastwood was then offered the role of Benjamin L. Willard in Francis Coppola's "Apocalypse Now", but declined as he did not want to spend weeks on location in the Philippines. He also refused the part of a platoon leader in Ted Post's Vietnam War film, "Go Tell the Spartans" and instead decided to make a third "Dirty Harry" film, "The Enforcer" (1976). The film had Callahan partnered with a new female officer (Tyne Daly) to face a San Francisco Bay area group resembling the Symbionese Liberation Army. The film, culminating in a shootout on Alcatraz island, was considerably shorter than the previous "Dirty Harry" films at 95minutes, but was a major commercial success grossing $100 million worldwide to become Eastwood's highest-grossing film to date.