Transformers fans, ever wondered how Michael Bay managed to pull off that daredevil sky-diving jump from Dark of the Moon? You know, that one where a group of army heroes glide between huge skyscrapers?

Well, now you can with this new behind-the-scenes video from Transformers: Dark of the Moon! Skydiver JT Homes explains how director Michael Bay saw him in action on 60 Minutes and decided to use the thrillseeker and his wingsuit for the robot blockbuster.

Filming in downtown Chicago, the production had to close down the city to allow the stunt to take place. Holmes and his team were used to soaring past mountains... but never skyscrapers.

Josh Duhamel described the set piece as "a once in a lifetime opportunity for them to be able to jump of the Sears Tower in Chicago".

Tyrese Gibson added: "If you can think of anything imaginable to break all the rules, that pretty much did it."

Transformers: Dark of the Moon is released on Blu-ray and DVD on Monday, November 28.