Toward the end of the film, Jack is traveling northbound on a V-series train and says "he's got to go back". Nikki says to him "then go", he moves to get off the train and the next shot shows him standing at Wondabyne Station. Problem is, the background footage has already depicted the train having gone past the station (you can see the stone carvings - they are NORTH of the station) and also the V-Series trains (silver) don't actually stop at Wondabyne. You need to be traveling on the OSCARs (grey with yellow doors) for them to actually stop at Wondabyne.