His work as an animator includes "Who Framed Roger Rabbit" (1988), "The Princess and the Cobbler" (1993), "The Lion King" (1994), "Quest for Camelot" (1998), "The Iron Giant" (1999), "The Road to El Dorado" (2000), ' (2002), "Piglet's Big Movie", ' (2003), "Robots" (2005) and "Open Season" (2006).