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In page Dalton Trumbo:

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Trumbo was reinstated into the Writers Guild of America, West and was credited on all subsequent scripts.[citation needed] The guild finally gave him full credit for the script of the 1953 film Roman Holiday in 2011. Trumbo directed the 1971 film adaptation of his novel Johnny Got His Gun, starring Timothy Bottoms, Diane Varsi, Jason Robards and Donald Sutherland. One of the last films Trumbo wrote, Executive Action (1973), was based on the John F. Kennedy assassination.[3] The Academy officially recognized Trumbo as the winner of the Oscar for the 1956 film The Brave One in 1975, presenting him with a statuette.[4]