Warn applied ambition to start off his career in drama when he began directing short films and music videos. It was not long before he picked up two short film awards from the New Zealand Film Commission and a Flying Fish Music Video of the Year Award. His 2003 debut feature film, Nemesis Game, which he wrote and directed, would go on to be nominated for seven New Zealand film awards including best picture and best director.
Shooting at locations all around the world, Warn developed a passion for the TV commercial format. This was the start of six-year period in which he directed many TV commercials. His 2007 Tiger Beer Taste It In This Life earned Warn the Silver Lion and since he has directed many beverage commercials, including Coke and Sprite for China, Summit Lager for New Zealand and Smirnoff Vodka for Australia.
Warns’s American break came with the successful collaboration for the action-packed trailer for Legend of the Seeker, for producers Rob Tapert and Sam Raimi; afterwards he was asked to stay on to direct episodes of Legend of the Seeker and was invited to be involved in their development project, Spartacus. Warn directed some of Spartacus’ key episodes, including the season finale, which gave him Director status in Hollywood and as a result, he landed directing roles on shows such as Criminal Minds, more Spartacus, The Vampire Diaries among other, he has done more global television and commercial shoots and worked on Shaolin Burning, a feature film based on a graphic novel created by designer Ant Sang.
Warn has directed the following episodes for Criminal Minds: