In the 1990s he owned and ran Dagda Film Ltd., an animation studio based in Dublin. He has worked on a number of animated films, including The Land Before Time (1988), All Dogs Go to Heaven (1989), Cool World (1992), Help I'm a Fish (2000) and Carnivale (2000). He is the director of the animated feature Happily N'Ever After (2007) and the short films Comb (2010) and Hamster Heaven (2010). He currently runs Pillarstone Productions, and is working on a forthcoming live action feature based on the legendary hero Cú Chulainn, entitled Hound, which he is also adapting as a comic.