Thunderbirds Are Go like you've never seen it before! Recently scanned from a private collection, composer Barry Gray's personal film print of the studio cutting copy of Gerry and Sylvia Anderson's debut Supermarionation feature offers us not only a fascinating look into the production process, but also reveals unseen International Rescue moments alongside unheard alternative dialogue. In this behind the scenes investigation we reveal the story behind the many deleted scenes from the film – what they were, why they were cut, and what the chances might be of seeing them again.