By JAKE COYLE, AP Film Writer NEW YORK (AP) — Matthew McConaughey notched one of the worst debuts of his career, Oscar nominees saw only modest bumps and M. Night Shyamalan's "Glass" easily remained No. 1 on a quiet weekend in movie theaters. The weekend's two new wide releases — McConaughey's tropic noir "Serenity" and the updated King Arthur tale "The Kid Who Would Be King" — both flopped with moviegoers