Leo Carax's “Annette,” starring Marion Cotillard and Adam Driver, will open the 74th Cannes Film Festival on July 6, festival organizers said Monday.“Annette” is Carax's first English-language film and the French director's anticipated follow-up to his celebrated, surreal 2012 film “Holy Motors.” Set in contemporary Los Angeles, “Annette” stars Driver and Cotillard as a glamorous couple — Driver plays a stand-up comedian, Cotillard a famous singer — whose first child is “a mysterious girl with