Press agent and film-maker Walter Seltzer, who produced Charlton Heston movies Soylent Green and The Omega Man, has died in Los Angeles aged 96.
He started at MGM in the 1930s before becoming a producer and, in later years, a fundraiser for the Motion Picture and Television Fund (MPTF).
The charity, which raises money for ex-film and TV workers in need, said he died at the retirement home it runs.
It said he had "a major impact on the lives of those who make movies".
As a press officer he worked on films featuring stars including Joan Crawford, Greta Garbo, Clark Gable, Dean Martin and Jerry Lewis.
The MPTF said he pioneered campaigns to garner Oscar votes, including the 1955 film Marty which won four Academy Awards including best picture.
As a producer, he worked on films including One-Eyed Jacks with Marlon Brando, Paris Blues with Paul Newman and Sidney Poitier and Gary Cooper's last film The Naked Edge.