Spokesman Russ Patrick said Halmi died yesterday in his New York City home. He was 90.
The Hungarian-born Halmi found success as a magazine photographer after arriving in America in 1951. But in a mid-career switch he turned to moving pictures.
During the next half-century he went on to produce more than 200 films and miniseries for television.
His specialty was family-friendly entertainment, with projects including "The Josephine Baker Story," the Bette Midler-starring "Gypsy," ''Merlin," ''Dinotopia" and the miniseries sequel to "Gone With the Wind."
Halmi recently had begun filming "Olympus," a mythological series for the Syfy channel.