Writing · b. 1946 · Philadelphia, Pennsylvania, USA David Engelbach Biography David Engelbach ( born 20 September 1946) is an American writer, director, producer, and actor. Directed America 3000 1986 Acting Electric Boogaloo: The Wild, Untold Story of Cannon Films Self - Writer 2014 Jaws Research Assistant (uncredited) 1975 Other Credits Over the Top Story 1987 Goldie and the Bears Story 1985 Death Wish II Writer 1982 Agent-readable