Working with digital artist and multimedia producer Helena Bulaja resulted in composing and recording the score for the fairytale Regoch (2006), which can be heard on the release of "Croatian Tales of Long Ago, Part Two" and collaborating in Helena Bulaja's latest project about Nikola Tesla, which features Laurie Anderson and Terry Gilliam amongst other artists.
Working at Park Road Post as an editor in 2006, Christian contributed also a string quartet piece for Academy Award nominee, Taika Waititi's feature film "Eagle vs. Shark" (2007) alongside the original soundtrack by the Phoenix Foundation.
In 2007 he composed the score for Marc Meyer's feature film debut Family Rules [de] (2007) and the music for Paul Swadel's TV One New Zealand documentary "The Big Picture" (2007) in collaboration with Dave Whitehead and Riki Gooch, which won "Best Original Score" at the Qantas Television Awards 2008.
In 2011 he scored 4 episodes of the German children's TV series "Löwenzahn" and the documentary "Family Meals" by Dana Budisavljević.
In 2005 he recorded the score for 3:20, written for solo saxophone by Gerald Busby, best known for his soundtrack of Robert Altman's 3 Women.