In 2003, Timpson founded the annual 48Hours film challenge, a New Zealand-based competition where teams of filmmakers create a short film in 48 hours.[2]Taika Waititi and Te Radar won in the festival's first year.[3]
The film Turbo Kid originated as a submission for the "T" segment in ABCs of Death. Though not selected, Timpson was impressed and approached the filmmakers to expand it into a feature.[4] Timpson got Elijah Wood and his production company, SpectreVision, involved in producing The Greasy Strangler.[5]
In January 2017, it was announced Timpson would produce a new horror anthology, The Field Guide to Evil, consisting of eight directors, each from a different nation.[8] The crowdfunded project is unique in that it will allow backers the opportunity to have equity investment.[9]
In 2019, his debut feature film Come to Daddy premiered at the Tribeca Film Festival. The film has a score of 86% on Rotten Tomatoes.