Long-necked tyrannosaurs??

The famous Bradbury short story A Sound of Thunder shares an extremely odd inaccuracy with the novelization of the original King Kong movie (recently reprinted in paperback). They both describe tyrannosaurs (well, some kind of theropod anyway) as having long necks. Is this just a confusion with dragons/ sauropods or was there ever a time when paleontologists thought that these large predatory dinosaurs were long necked?