The first full line of dialogue out of John Travolta's mouth in The Fanatic is "I can't talk long, I gotta poo." There's something to be said about a movie that lets you know what to expect right out of the gate, like a song called "Rollin'" that begins by telling you it is in fact time to keep on rollin'. If you were intrigued by the trailer for this stalker-thriller from director Fred Durst then strap the hell in, because it's exactly as advertised: 90-ish minutes of two-time Oscar nominee John Travolta …