It's no real challenge to annoy Vincent Gallo, the filmmaker. He blew up after Roger Ebert gave his increasingly self-indulgent work a bad review, and again last week because an obscure Brooklyn band dissed him in their lyrics. From a former friend of Gallo, a suggestion for his enemies: "If you want to piss him off, try referring to him as Vinnie. That's what real Italians named Vincent are usually called."