Katrina is the director and co-producer of How To Poison A Planet, a feature documentary that exposes the global PFAS chemical contamination crisis. Featuring actor and activist Mark Ruffalo, the film was commissioned by Stan and premiered in 2024.

How To Poison A Planet won The Documentary Award at the Walkley Awards in 2024 and Katrina also received a second Walkley Award and a Kennedy Award in 2023 for the joint investigation into the PFAS contamination of the Wreck Bay Aboriginal Community, a story prominently featured in the documentary.

Since the film's release, Katrina has been invited to speak about the film and the PFAS issue at the Australian Federal Parliament and the French Senate as well as at a number of NGOs in the US and Europe. 

She is currently co-directing and co-producing a four-part series with iKandy Films, set to premiere on Stan in 2026.

In 2020, Katrina was part of Screen Australia's Emerging Filmmaker Enterprise Program.