Wilmer C. “Bill” Butler, A.S.C. (born April 7, 1921) is an American cinematographer, part of the New Hollywood generation. He shot "The Conversation" (1974), "Jaws" (1975), and three "Rocky" sequels. He completed 1975's "One Flew Over the Cuckoo's Nest" after Haskell Wexler was fired from the production.