Jack P. Foreman, 71, vice president and general manager of Warner Hollywood Studios for more than three decades. A graduate of USC, he began his career with the Columbia Broadcasting System as director of film production at CBS-TV in Hollywood in 1957. He became general manager of Samuel Goldwyn Studios in 1960 and succeeded Samuel Goldwyn as chief executive officer in 1969. When Warner Bros. bought Goldwyn Studios in 1980, Foreman was appointed vice president and general manager, a title he held until last year. On Jan. 13 of a heart attack at his home in Brentwood.