Two Cannes prize winners got the 22-film slate under way Thursday -- the French director Olivier Assayas's "Clean" and the South Korean filmmaker Park Chan-wook's "Oldboy,"
"Clean," which won the Cannes best actress award last year for Maggie Cheung, is the jumpy story of a tough-talking drug addict trying to regain her young son's trust.
"Oldboy," described by the New York Times as a "feverish, mind-twisting revenge tale adapted from a Japanese comic book," won the Cannes best director prize.
The series includes two films starring the French actress Isabelle Huppert, "La Mere" and "Deux."
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