Dr Jonathan Hare has been busy in his back garden carrying out experiments to see if stunts seen in movies really can happen.
The Sussex University lecturer is appearing on a new BBC series called Hollywood Science to put some of the daredevil scenes to the test, including the storyline in the film Speed where a runaway bus jumps a 50ft gap while travelling at 50mph to stop it from blowing up.
Dr Hare has shown it is the film-makers who take the viewers for a ride.
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