Question: Between My Dog Tulip and Superman/Batman: Public Enemies, which film was directed by Sam Liu?
Sentence (from "Superman/Batman: Public Enemies"): Superman/Batman: Public Enemies is a 2009 original direct-to-video animated superhero film adaptation of "Public Enemies"—the opening story arc of DC Comics' "Superman/Batman"—which focuses on Superman and Batman teaming up to prevent a meteorite from striking Earth and take down Lex Luthor, who has been elected President of the United States.
Relevant evidence: Yes