Marvin B. Meyer, one of the founding partners of what would become law firm Rosenfeld, Meyer and Susman, a key contributor of legal services to the entertainment industry, and an entertainment lawyer whose clients included Gregory Peck, Billy Wilder, Jack Lemmon, Jerry Lewis and Fred Zinnemann, died Monday of pancreatic cancer. He was 88.Meyer’s clients also included Grace Kelly, Montgomery Clift, Henry Fonda, the Marx Brothers, Ronald Reagan, Jane Wyman, Tony Curtis, Janet Leigh, Anthony Quinn, Julie Andrews, Jack Benny, Marlon Brando and Marilyn Monroe. Later clients included Bill Cosby, Jon Peters, Sharon Stone, Mike Nichols, John Calley, Mike Medavoy, Janet Jackson, Joan Rivers, Jeff Berg and Ed Limato. Meyer went to USC and Pomona College before graduating from Harvard Law School in 1948. In 1953 Meyer and Larry Beilenson, an attorney who had been in legal affairs at MGM and a business affairs exec at MGM, founded Bielenson & Meyer. That firm evolved into Rosenfeld, Meyer and Susman, established in 1957. Meyer was born in Brooklyn but raised in Los Angeles. In 1968 he was among those who formed new NBA franchise the Phoenix Suns (other backers included singers Andy Williams and Bobbie Gentry). The attorney was honored as entertainment lawyer of the year by the Beverly Hills Bar Assn. in 1990. He served as an adjunct professor at USC’s Peter Stark Graduate Film School in 1997-98.