Continuity mistake: When Lady Penelope is at the café in Paris with Sir Jeremy Hodge, she orders a Pernod. When the waiter delivers the drinks, there is a clear coloured liquid on the tray. As soon as the waiter leaves, Lady Penelope is holding the white coloured Pernod.
Continuity mistake: When we first see Virgil in the cockpit of Thunderbird 2 in the launch sequence at Tracy Island, he has nothing on his head. Later on, when we see both him and Brains, Virgil is now wearing his International Rescue hat, but when we see Virgil after the launch, the hat has gone.