Michael Cera, Kieran Culkin in a crackling Broadway "This Is Our Youth"
NEW YORK"That kid you loved on "Arrested Development" is now that guy you'll adore on Broadway. Michael Cera makes a sublime debut on the theater world's biggest stage alongside two other splendid actors, Kieran Culkin and Tavi Gevinson, in Kenneth Lonergan's "This Is Our Youth," a comedy-drama about smart young people with zero direction and less than zero judgement, that opened Thursday night at the Cort Theatre. R…