 As the young Thunderbirds prepare to launch towards The Bank of  London with Lady Penelope, an insert shot shows a hand grabbing a  lever. This hand is held up by strings, a quick reference to the  style of animation used in the Thunderbirds television series. Also,  this is in a complete reversal to the series, as all shots in the TV  show were of marionettes, except when there was an extreme closeup  of a hand or foot, at which point was replaced with a persons hand  or foot doing the required action (pulling a switch, stepping on the  gas pedal of a car, etc.)