1974 was the year of change in Formula One. Defending champion Jackie Stewart had retired from racing, creating a power vacuum that sucked a host of racers, old and new, into the battle for the Championship.

And what a season! Predicting the outcome of each race was impossible as the drivers battled to come to terms with closer racing brought about by faster cars with better tyres. It was reliability as much as driving skill that kept the leaderboard in a state of constant flux. By the final race of the season Emerson Fittipaldi (McLaren), Clay Regazzoni (Ferrari) and Jody Scheckter (Tyrrell) were locked in a fascinating three-way battle for the title. It went right down to the wire.

This film doesn¦t just show the action from the season v it tells the story. Pit-lane cameras eavesdrop on intimate conversations between the engineers and drivers as they discuss set-up and tyres, revealing a world markedly different from contemporary Formula One.

Brunswick Films were pioneers in the embryonic days of Formula One production, when sponsors controlled the demand for footage, and before the era of global TV coverage began. They have skilfully combined film from their famous archive - including some previously unseen material - to create a review that captures the essence of a very special era in Grand Prix racing. Time: 52mins.