Entertainment attorney Gerald Margolis died Sept. 15 from complications relating to pneumonia after a long illness. He was 65.

A partner at Manatt, Phelps and Phillips, his clients over the years included Robin Williams, R. Kelly, Mick Jagger and Keith Richards.

His 30 year career as a trial lawyer included cases such as Hulex Music, et al, v. Columbia Pictures, et al in which the plaintiff contended the main title theme from the theatrical motion picture “Ghostbusters” was deliberately copied from the song “I Want a New Drug” by Huey Lewis and the News and Rege v. Williams, where Margolis successfully defended Williams in a product disparagement action brought against the comedian.

Margolis was experienced in both litigation and transactional work, in both music and film. A graduate of Harvard U. and Fordham Law School, Margolis is a former faculty member of the USC Law School Entertainment Law Symposium and lecturer with the Practicing Law Institute.

Margolis is survived by his wife Cyndi, a daughter, a brother and a sister.

A memorial service will he held Monday Oct. 6 at 11 a.m. at Fox Studios’ Darryl F. Zanuck Theater.

Donations may be made to the Challenged Athlete’s Foundation.