The Deer Park: A Play (67.13) opens at Theatre DeLys in New York on 31 January; it closes 21 May after 127 performances. Mailer underwrites the production and loses money. The cast includes his wife Beverly, ex-wife Adele, Rip Torn and his old friend, actor Mickey Knox.
On 24 May, he is inducted into the National Institute of Arts and Letter. Publishes four books: The Short Fiction of Norman Mailer (67.11) which contains 19 stories written from 1940 to 1962 (11 May); The Deer Park: A Play (7 August); Why Are We in Vietnam? (67.15) (15 September); The Bullfight (67.20), a portrait of Mexican bullfighter Amado Ramirez, known as "El Loco" (mid-November); makes two experimental films, Wild 90 and Beyond the Law, co-produced by his close friend, Buzz Farbar.
On 21 October, he takes part in an anti-war protest at the Pentagon, along with Robert Lowell, Noam Chomsky and Dwight Macdonald. Why Are We in Vietnam? is nominated for the National Book Award.