Despite the popularity of the TV show in 1965, the two spinoff Thunderbirds feature films were both box offices failures. This has often been attributed to the indifferently written screenplays that seem to have completely missed the sense of suspense that the fifty-minute episodes achieved. Both feature films feel rather slow and like extended episodes rather than big budget extravaganzas. They fail to do anything different with established characters and apart from showcasing more extensive miniature effects in a widescreen format, don’t really have much more to offer. It’s curious that the winning, character driven formula that worked on television was overlooked for these big screen outings.