Actually the film gets it wrong, as the series probably will... the real Spartacus actually fought his way all the way to Transalpine Gaul, where he and his army were pretty much free to go wherever they wanted... but what would Spartacus be then? Glory and fame were too seductive to give up I presume, so they turned back into Italy to plunder the countryside again, and that's when they were surrounded and lost. Wouldn't had made for such a good flick telling that story.
