Liu has since worked on many animated films for Marvel Entertainment and Warner Bros. Animation, including All-Star Superman, Superman/Batman: Public Enemies, Hulk Vs, Planet Hulk, Thor: Son of Asgard, and co-directing with Lauren Montgomery on Justice League: Crisis on Two Earths and Batman:Year One. Liu was also the primary character designer for Superman/Batman: Apocalypse. In 2010, Liu moved back to television, directing Green Lantern: The Animated Series with Bruce Timm, and Beware the Batman with Glen Murakami.