The second and final part of a unique documentary which takes a look behind the scenes at Guinness World Records, airs tonight on UK TV.

For Inside Guinness World Records, director Olivia Lichtenstein was given unparalleled access to document in detail the day-to-day life of the company.

Tonight's episode features another set of incredible record holders - from Zeus, a Great Dane from Michigan who is the world's tallest dog, to Ashrita Furman- holder of the title for most current Guinness World Records held at the same time by an individual.

We also get to meet Wilma Conner, the oldest competitive female bodybuilder, Pauline Potter, the world's heaviest woman, and daredevil grandad Tom Lackey, the world's oldest wing walker.

Part two of Inside Guinness World Record airs onITV 1 tonight at 8pm.

The first part of the documentary is still available to watch via ITV Player here