Coen brothers with its head turned around as it looks back over its hindquarters. Up to 2003, Joel received sole credit for directing and Ethan for producing, due to guild rules that disallowed multiple director credits to prevent dilution of the position's significance. The only exception to this rule is if the co-directors are an "established duo". Now that they were able to share the director credit the Coen brothers have become only the third duo to be nominated for the Academy Award for Best Director. The first two pairs to achieve this were Robert Wise and Jerome Robbins (who won for
Joel S. Engel Joel S. Engel Joel Stanley Engel (February 4, 1936) is an American engineer, known for fundamental contributions to the development of cellular network. Born in New York City, he obtained a B.Sc. in engineering at City College of New York (1957). While working at the Massachusetts Institute of Technology in the research staff at Draper Laboratory on inertial guidance and stabilization systems, he also obtained an M.Sc. in electrical engineering (1959). He then moved to New Jersey and worked for Bell Labs most of his active research career (1959–83), and also earned a Ph.D. from Polytechnic Institute of Brooklyn on