The lads share loneliness and a feeling of failure with women. Aaron is in love with Daphne Binks (Elisabeth Moss of "Mad Men"), a medical intern who works endless shifts and gets a great job offer in Seattle, far from the music biz. Aldous has split from Jackie Q (Rose Byrne) as a consequence of his spectacular fall from sobriety. We learn they earlier collaborated on an album voted the worst of all time, but while Aldous has plunged, Jackie Q has soared. In a movie jammed with celebrity cameos (New York Times columnist Paul Krugman?), we see bits of her music videos, which, incredible as they may be, aren't entirely improbable. We are so deep into post-irony that it's hard to be sure if a video is intended to be bad.