Excellent tour. Pleasant staff at Dover organized us well, and the timing was better than I expected, with 3.5 h to spend at the Warner Brothers Studio. My only concern was the hotel drop offs. The tour guide and the driver both seemed very stressed to try to map the drop-off route and navigate the bus to each hotel. It certainly seemed a difficult task. At one point, after hotel drop-off #2 (of at least 6), about 90min after leaving the Studios, my 13 year old son asked our bus driver if he could run in to the hotel to use the toilet. The driver actually yelled back at him that he couldn't be expected to wait - the yelling on the sidewalk was audible inside the bus! My son returned to the bus and had to wait uncomfortably for another hour. While I empathize with the difficulty of this drop-off task, on London streets, in the rain, I suggest that if you are operating tours that necessarily will include children, such as this one, that you consider using a bus with a toilet on board, or have some contingency for a break, as occurred en route to the Studios. Thank you for what was otherwise a very well run and extremely enjoyable tour.