In this gently funny film by Australian telecom firm Optus, former Olympic swim champion Ian "Thorpedo" Thorpe has reinvented himself by starting a pool cleaning company.

The mockumentary-style ad, which is aimed at small businesses, promoting a competition where they can win tickets to the Rio Olympics this summer, sees Thorpe driving around in a "Thorpedo Pool Cleaning" van, showing off his encyclopaedic knowledge of pool shapes and offering to clean customers' pools in "world record time." It's all so he can score tickets to the Games.

Thorpe -- who managed to fool some fans that he had really started the business by tweeting a teaser -- is totally convincing, even when explaining how he still keeps samples of the special pool water from where he won his first world record, or asking a flirtatious housewife: "Do you even have a pool?" He also manages to deliver lines like: "I think we forget how the majority of our bodies being made up of water, being able to clean pools for people now, it's like I'm cleansing their soul," with a completely straight face.

The ad was directed by Finch's Alex Roberts, for agency With Collective.