The main competition at this festival might be compared to an exclusive club with a significant number of permanent members. (A gentleman's club, mainly, since shockingly few women - none this year - are invited to join.) Some filmmakers pass through an initiation period in satellite programs like Un Certain Regard and the Directors' Fortnight, while others vault right onto the main stage, but it is remarkable how many of them, once they are voted in, keep showing up year after year. A.O. Scott reports for the New York Times (free subscription required to view).