Thunderbird 6 was the second feature spin-off from the hit Gerry Anderson puppet-animation TV series Thunderbirds, and revolved around a new addition to the line-up of International Rescue's five emergency craft. The plot sees Lady Penelope, Alan, Tin-Tin and Parker as the only passengers on the maiden, round-the-world flight of a futuristic airship, which is hijacked in a bid to capture Thunderbirds 1 and 2. From the moment Alan arrives on a Bond-style jetpack, the film veers away from the TV show into espionage adventure territory, and while the only people International Rescue rescue are their own members, they kill a fair number of baddies. The global tour means there are more locations than ever, and though the story takes a long time developing, the Die Hard-on-an-airship finale delivers the most explosive set piece of Gerry Anderson's career. As for Thunderbird 6, opinion remains divided as to whether it's an ingenious twist or a disappointing gimmick, but the movie's blend of model and live-action footage results in two superbly staged stunt sequences. Predecessor Thunderbirds Are Go (1968) is also available, and the Andersons would make one further feature film, Journey to the Far Side of the Sun (1969). On the DVD: The anamorphically enhanced 2.35:1 ratio image is sharp, full of detail and boasting well-saturated colours, only the briefest moments of damage and some graininess revealing the age of the print. The film was shot in ultra-wide Techniscope, and there are moments were it is very obvious that parts of the original 2.74:1 picture have been cropped at the sides. The mono sound is powerful with no hint of distortion. Extras are the original trailer, galleries of behind the scenes photos and promotional artwork, though the highlight is the highly informative commentary by Sylvia Anderson and director David Lane where they note how they made this film and worked on Captain Scarlet simultaneously.--Gary S Dalkin