This exercise in mainstream masochism, macho posturing, and designer-grunge fascism (1999) is borderline ridiculous. But it also happens to be David Fincher’s richest movie — not only because it combines the others (Alien3, Seven, The Game) with chunks of Performance, but also because it keeps topping its own giddy excesses. Adapted by Jim Uhls from Chuck Palahniuk’s novel, this has something  — but only something — to do with a bored Edward Norton encountering a nihilistic doppelganger (Brad Pitt) who teaches him that getting your brains bashed out is fun. Though you’re barely allowed to disagree with him, your jaw is supposed to drop with admiring disbelief at the provocation, and the overall impression of complexity might easily be mistaken for the genuine article. In other words, this is American self-absorption at its finest. With Helena Bonham Carter, Meat Loaf, and Jared Leto. 139 min. (JR)