Tom DiCillo's fascination with the chasm between talent and celebrity comes to the fore in this mischievously smart relationship comedy. New Yorkers Matthew Modine and Catherine Keener are drifting apart; when aspiring thespian Modine is fired from a role as an extra in a Madonna video, he hits rock bottom. Bitingly brilliant, with cameos from Steve Buscemi and Daryl Hannah. DVD EXTRAS: Scene selection. (CR)