We&rsquore on the approach road to the Port of Southampton and our coach driver is confirming directions with a colleague on his cellphone. &ldquoWhich gate do we go to, mate&rdquo he bellows. &ldquoOh, the one with the big boat Righto&mdashcheers&rdquo Whereupon the coach enters a service lane and we catch our first glimpse of the &ldquobig boat&rdquo looming in the distance. Tired and grimy though I am from the overnight flight, I feel a bit like Kate Winslet in that film, you know the one.