French film director Henri Georges Clouzot, who made the classic thriller "Le Salaire de la Peur" (Wages of Fear), died here Wednesday of a heart attack. He was 70.

His best films were marked by powerful realism and high dramatic tension, and included "Le Corbeau" (1943). "Quai des Orfevres" (1947), and "Les Diaboliques" (1947). " (1954).

"Wages of Fear," starring Yves Montano in 1952, was one of his biggest successes. It told the nail-biting story of two men assigned to drive a truckload of nitroglycerine to a blazing oil well in the South American jungle.

One of the most original and powerful post-World War II European film directors. Mr. Clouzot had studied law but switched to journalism and scenario writing.

In 1956, he departed from his usual violent subjects and directed "Le Mystere Picasso" (The Picasso Mystery), a cinematic attempt to reveal and record the mystery of artistic creation. It won France's top film award in 1960.

He had previously won the International Prize at the Venice Film Festival in 1949 and the Grand Prize at the 1954 Cannes festival. In 2966, he made a series of four television films on conductor Herbert Von Karajan.

In addition to his film work, Mr. Clouzot wrote a book, "Le Cheval des Dieux" (God's Horse), a study of which doctors, and a three-act comedy for the stage.

He married twice. His first wife, a Brazilian, died in 1963, and two years later he married an Argentinian, Inez de Gonzales, 30 years his junior.