The film itself is quite interesting in the sense that the miniatures and puppets are really cool and the awesome music really makes it worthwhile. The problem is that the Thunderbirds themselves are barely in it. They do appear here and there but only really come into action with a few minutes left in the flick. The only other real action sequence to speak of happens in the middle of the flick when secret agent Penelope and her floating Rolls Royce FAB1 take up arms against some creepy euro-baddie. The rest of the film basically consists of watching Zero-X take off (twice!) and then watching a bunch of anal retentive astronauts roving around Mars, talking about rocks and getting attacked by some creature we never find anything out about following which the boys swoop in for the rescue. Basically, the only reason it's cool is because of the puppets (or marionettes as I understand they're to be called). If this same movie were filmed with live actors, it would be panned worldwide but I have to concede one thing: the puppets/marionettes are freaking cool and make it almost worthwhile. This one's definitely reserved for those who are looking for a cool movie shot in an alternative medium. Interesting but not great.
Featurettes: Three featurettes are offered in a little set, these being the self-explanatory "History and Appeal", "Factory of Dolls and Rockets" and "Epics in Miniature". They're all pretty cool to watch but again, mostly because the dolls themselves are cool.
"Who Said That" Quiz: This is a little interactive game in which you have to match lines from the movie to one of the Tracy Brothers (a.k.a. the Thunderbirds). If you win, and you can't really lose, you get another short clip featuring Sylvia Anderson explaining the origin of the tag line "FAB!"
The rest includes an Animated Photo Gallery and the Original Theatrical Trailer.