His films included Easy Rider, Five Easy Pieces, Paper Moon, Shampoo, Ghostbusters, The Karate Kid, Frances, Mask, and Miss Congeniality. He also worked on The Last Waltz and Close Encounters of the Third Kind.
Recently he was working on the documentary Torn from the Flag, about the 1956 Hungarian Revolution.
Kovacs died in his sleep at his Beverly Hills home on Sunday. He is survived by his wife, Audrey, Julianna and Nadia; and a granddaughter.